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intervene
/ɪntə'viːn/
If an event intervenes, it happens suddenly in a way that stops, delays, or prevents something from happening.
The South African mailboat arrived on Friday mornings unless bad weather intervened...
除非受恶劣天气干扰,南非邮船一般在星期五上午抵达。
I pray that death may not intervene to prevent our meeting with my darling children.
我祈祷死亡不要阻挠我们与我亲爱的孩子们见一面。
assault
/ə'sɔːlt/
To assault someone means to physically attack them.
The gang assaulted him with iron bars...
这伙人用铁棍殴打他。
She may have been sexually assaulted by her killer.
她可能遭到过凶手的性侵犯。
backbone
backbone enterprise
骨干企业
backbone frame
脊梁架
backbone network
中枢网络，骨干网
backbone road
干道
backbone structure
主体结构
collapsed backbone
折叠式骨干；紧缩主干
to the backbone
完完全全；彻头彻尾
背诵
意思：
后面的骨头，脊柱，支柱
courage and determination
He has a crush on S , but he do not have the backbone to ask her out
do改为does
注意动词的形式与主语是否搭配，写完检查完再对比不迟
has a cush on sb. 迷恋某人
Nobody in the Chongqing bus had the backbone to intervene and prevent the middle-age woman from assaulting the driver . If somebody did , the story would have turned out very differently .
He has enough backbone to take up the Ice Bucket Challenge .
翻译
他没有胆量，在最后一刻放弃了奖学金申请
He didn't have the backbone , and gave up application for scholarship at the end .
application 前应该加the ， 最后一刻 at the last minute .
例句：
He didn't have the backbone and gave up the scholarship application at the last minute.
或
Lacking the backbone, he gave up the scholarship application at the last minute.
造句
场景：
他因为没有胆量而错失了良机。
造句：
He didn't have the backbone and lost the chance .