辞职;退休
Our boss stepped down after thirty years with the company.
我们的老板在这家公司工作了三十年后退休了。
He is not ready to step down yet.
他还不准备辞职。
2. designed to
旨在,目的在于
3. spell out
详加说明
He had to spell out the plan in detail to persuade the investors.
为了说服投资人,他不得不把整个计划细细说明清楚。
4. turn down
拒绝
His proposal was turned down.
他的提议被拒绝了。
5. In addition to
除...之外(还)
In addition to French, he has to study Japanese.
除了法语外,他还得学日语。