1.step down 辞职
例句:He stepped down last week.
他上个星期辞职不干了 。
2.take care of 照顾
例句:Don't worry yourself about me, I can take care of myself
你别担心我,我能照顾好自己 。
3.at least 至少
例句:He's been away for at least a week.
他走了总有一个星期吧 。
4.expected to 预计
例句:The strike is expected to cause delays and disruption to flights from Britain
预计罢工将导致英国航班的延误和中断 。