重點(diǎn)講解：
1. step up 增加(數(shù)量等)；提高(速度、強(qiáng)度等)；
He urged donors to step up their efforts to send aid to Somalia.
他敦促各捐贈(zèng)方加快速度將援助物資送往索馬里s6efzf@*0DJe0。
2. hit back at 反擊；還擊；
The President has hit back at those who have criticised his economic reforms.
總統(tǒng)對(duì)那些批評(píng)過其經(jīng)濟(jì)改革措施的人進(jìn)行了反擊x[%prusWRVfgBaTo。
3. stand aside (從重要職位上)退下，下臺(tái)(常為了讓位給別人)；
The President said he was willing to stand aside if that would stop the killing.
總統(tǒng)說，如果他下臺(tái)能讓殺戮停止的話，他愿意這樣做2tNh@@.P_Cf7M%。
4. stand down (從重要職位上)退下，下臺(tái)(常為了讓位給別人)；
Profits plunged and he stood down as chairman last January.
因利潤(rùn)驟降，他作為董事長(zhǎng)于去年1月辭職了DP%%.dGR)V*q&HO。