1）plain sailing, 一帆风顺；
2）disclaimer, (n.) 免责声明/条款；
3）mandatory, (a.)强制的，法定的，义务的，e.g.Mandatory rules in your school；
4）lenient, (a.) 仁慈的，宽厚的，e.g. Is your boss lenient or strict?
5）smirk,假笑，得意地笑；
6）slump,大幅度下降，暴跌，a sudden falling of economy（经济大衰退）;
7）accredited, 公认的；
8）morale,士气，道德，精神；
9）meticulous,一丝不苟的，极端细心的；
10）kitchen ventilator,抽油烟机；
11）vacuum machine,吸尘机；
12）electric iron,电熨斗；
13）procrastinator, (n.) 拖延者，拖拉者，tend to put things off，反义词：organized or self-motivated. procrastinate (v.)/procrastination (n.)；
14）remuneration, (n.)赔偿，报酬，酬劳；
15）idiomatic, (a.) 符合语言习惯的，通顺的；
16）squad, (n.) team，小队，e.g. Suicide Squad（自杀小队）;
17）complication, (n.) 使更复杂化的事物，并发症，纠纷，混乱;
18）distortion, (n.) 扭曲，变形，（信号、波形等）失真;
19）onlooker, (n.) 旁观者;
20）blow your mind, 让你铆足了开心，意乱情迷;
21）cardboard, (n.) 硬纸板；
22）allegedly, [əˈledʒədli] (a.) 据说，据传，据…声称，e.g. A woman was arrested yesterday for allegedly using a homemade Oregon license plate on her car, according to the San Bernardino County Sheriff's Department；
23）water hyacinth, 水葫芦（植物）
24）hydrogen, ['haɪdrədʒən] (n.) 氢；氢气;
25）jackpot, (n.) 最高奖金（通常用于lottery）;
26）not by a long shot, (informal) 不可能，definitely not;
27）backstabbing, (n.) 背后中伤，暗箭伤人（常用于政治），e.g. I've worked hard for the program, but her backstabbing is really getting to me;
28）scintillating, ['sɪnt(ə)l.eɪtɪŋ] (a.) 才华横溢的，妙趣横生的（多指演讲，讨论，表演等），e.g. The conversation at dinner last night was scintillating;
29）overzealous, [.oʊvər'zeləs] (a.) 过于热心的，激情过高的，e.g. He's a little overzealous at times, but otherwise he's asplendid addition to the team;
30）parliamentary, [.pɑrlə'ment(ə)ri] (a.) 议会的，国会的，e.g. He gave a parliamentary speech;
31）cabinet, ['kæbɪnət] (n.) 内阁，储藏柜，e.g. cabinet meeting，内阁会议;
32）superficially, [ˈsupɚˈfɪʃəlɪ] (ad.) 从表面上看;
33）jolly, ['dʒɑli] (a.) 愉快的，快乐的，令人高兴的;
34）highbrow, [ˈhaɪbraʊ] (a.) 趣味高雅的，阳春白雪的，有文化修养的，e.g. It's sophisticated but not overly highbrow, positive but not superficially jolly;
35）inversion, [ɪn'vɜrʃ(ə)n] (n.) 倒置，颠倒，倒转;
36）debris, [də'bri] (n.) 碎片，残骸;
Natural Disasters（自然灾害）
37）volcano, [vɑ:lˈkeɪnoʊ]，火山，e.g.The volcano erupted last year killing about 600 people;
38）tsunami, [tsuˈnɑmi] (n.) 海啸，huge wave caused by an earthquake or volcano eruption Flood;
39）typhoon, ['hʌrɪ.keɪn] (n.)，台风，Tropical storm Hurricane， similar to hurricane ['hʌrɪ.keɪn] 飓风;
40）avalanche, ['ævə.læntʃ] (n./v.) 雪崩，山崩，崩塌;
41）drought, [draʊt]，旱灾，干旱（时期），旱季，opposite of a flood，e.g. Drought and famines have killed up to two million people here;
42）earthquake, 地震; 大变动;
43）landslide, ['lænd.slaɪd] (n.) 山崩，滑坡，e.g. He won last month's presidential election by a landslide;
44）flood, [flʌd]，(n.) 洪水; 泛滥; 溢流，(vt.) 淹没，e.g. More than 70 people were killed in the floods, caused when a dam burst;
Man-made disasters（人为灾害）
45）Nuclear explosion, 核爆炸，e.g. Following the nuclear explosion in Chernobyl, thyroid cancers started to significantly increase only seven years after exposure(切尔诺贝利核电站爆炸发生七年以后甲状腺癌的发病率才开始明显上升);
46）Global warming, 全球变暖，an increase in the earth's temperature due to fuels, industry, and agricultural processes caused by human, natural, and other gas emissions. This results in an increased emission of greenhouse gases;
47）Toxic waste, [ˈtɔksik weist]，有毒废料，e.g. Toxic waste could endanger lives and poison fish(有毒废物可能危及生命，毒死鱼类);
48）Extinction of endangered species, 濒危物种灭绝;
49）Oil spills, 石油泄露;
50）stand-alone (a.) 独立的，独立式 e.g. But such an exciting start was often taken no further, at least in the setting of the stand-alone business schools.
51）wrong footed (a.) 乱了脚步，乱了阵脚 e.g. Although markets had largely priced in a quarter-point rise by the ECB, the Bank of England move wrong-footed markets.
52）facilitate the conversation flow ，使话题继续（接茬）