练习材料：
L11(2)：Not guilty
'Perfume,eh?' he asked sarcastically. 'You should have declared that. Perfume is not exempt from import duty.'
ˈpɜrfjum,ɛ?' hi æskt sɑrˈkæstɪkli. ju ʃʊd hæv dɪˈklɛrd ðæt. ˈpɜrfjum ɪz nɑt ɪgˈzɛmpt frʌm ˈɪmpɔrt ˈduti.'
'But it isn't perfume,' I said. 'It's hair gel.' Then I added with a smile, 'It's a strange mixture I make myself.'
bʌt ɪt ˈɪzənt ˈpɜrfjum,' aɪ sɛd. ɪts hɛr ʤɛl.' ðɛn aɪ ˈædəd wɪð ə smaɪl, ɪts ə streɪnʤ ˈmɪksʧər aɪ meɪk ˌmaɪˈsɛlf.'
As I expected, he did not believe me. 'Try it!' I said encouragingly.
æz aɪ ɪkˈspɛktəd, hi dɪd nɑt bɪˈliv mi. traɪ ɪt!' aɪ sɛd ɛnˈkɜrɪʤɪŋli.
The officer unscrewed the cap and put the bottle to his nostrils. He was greeted by an unpleasant smell which convinced him that I was telling the truth. A few minutes later, I was able to hurry away with precious chalk marks on my baggage.
ði ˈɔfəsər ʌnˈskrud ðə kæp ænd pʊt ðə ˈbɑtəl tu hɪz ˈnɑstrəlz. hi wʌz ˈgritəd baɪ ən ənˈplɛzənt smɛl wɪʧ kənˈvɪnst hɪm ðæt aɪ wʌz ˈtɛlɪŋ ðə truθ. ə fju ˈmɪnəts ˈleɪtər, aɪ wʌz ˈeɪbəl tu ˈhɜri əˈweɪ wɪð ˈprɛʃəs ʧɑk mɑrks ɑn maɪ ˈbægəʤ.
任务配置：L0、L1、L2、L3、L4
知识笔记：
单词
Sarcastically/sɑrˈkæstɪk(ə)li/ In an ironic way intended to mock or convey contempt.
Ironic/aɪˈrɑnɪk/ Using or characterized by irony.
Irony /ˈaɪrəni/The expression of one's meaning by using language that normally signifies the opposite, typically for humorous or emphatic effect.
Encouragingly /ɪnˈkərɪdʒɪŋli/ Giving someone support or confidence; supportive.
Convince /kənˈvɪns/ Cause (someone) to believe firmly in the truth of something.
音标：/ɜː/
发音要点：发音类似于汉语的“饿”，美音带儿化音；发音时舌身放平，舌中间向上，舌身紧张；喉咙深处发音。
评论他人：一般小伙伴都发出“饿”的音，但发音位置靠口腔前面，我也容易出这个问题。
练习感悟：有些音标觉得很熟悉，其实发音错的离谱，今天的音标我以前一直读唉音的~提交作业中我的这个音发的也不怎么明显，听别人的作业确实能听出共性的问题（自己也有）。