重點講解：
1. aim to do sth. 致力于；旨在；以…為目標；
例句：We aim to help disabled students to live and study independently.
我們旨在幫助殘疾學生盡可能獨立地生活和學習R^IPw9ea5I-S-%O。
2. churn out 快速生產；大量生產；
例句：He began to churn out literary compositions in English.
他開始用英文創作大量的文學作品y8#5huiFf21RkeTDjM*。
3. phase out 逐步淘汰；逐步放棄；
例句：The old machinery here will be phased out.
這里的舊機器將逐步淘汰_fI(Df|ME9YO。
4. fail to do sth. 失敗；未能夠；未做成；
例句：For one reason or another, business between us have fail to develop.
由于種種原因，我們之間的業務未能發展下去kxvEfi%v(-zFN!h。
5. close down （工廠、商店、學校等）永久性關閉；（使）停業；（使）倒閉；
例句：The company had decide to close down its three branch in europe.
該公司已決定關閉它在歐洲的三個分公司.iZbI%Udtyed@F4P。