1.stick to 坚持

例句：Perhaps he should have stuck to writing.
或许他本该坚持写作oX6wcX-SI6p。

2.come up with 提出

例句：We weren't able to come up with any new suggestions.
我们提不出任何新建议ik|NvaC[eBCBa@E。

3.covered with 覆盖着

例句：The rice seedlings were covered with plastic sheeting.
秧苗上面覆盖着塑料薄膜;6Na)c^CQjfe+x)7-K。

4.sit down 坐下

例句：Let's sit down and take a rest for a while.
我们坐下来，少憩片刻吧dYY4wR8h6RHr-MFV(1KU。