He laughed to cover his nervousness.

The cocoa industry dwindled because it became increasingly difficult to cover costs

由于越来越难以收回成本，可可产业日渐衰落。

Your parents will have to cover your tuition fees.

你的父母得支付你的学费。

He had attempted to cover his tracks by making her death appear like suicide.

他使她的死亡看起来像是自杀，企图以此掩盖自己的罪行。

We each put £ 20 in the kitty to cover the bills.

我们每人凑20英镑支付账单。

She gave me some money to cover any miscellaneous expenses.

她给了我一些零花钱。

She laughed to cover her nervousness.

她笑了，想以此来掩饰自己紧张的心情。

She laughed to cover up her feeling of awkwardness.

她用笑声掩饰她的难堪。

Plastic sheeting is used to cover the soil to prevent loss of moisture.

使用塑料薄膜覆盖，可以防止跑墒。

Ping Xiang City and social customs of a place?

萍乡风土?

We say them when someone hands us a letter, passes us a book, offers us a drink, or lends us an umbrella.

当有人递给我们一封信,递给我们一本书,给我们一杯饮料,或者借给我们一把雨伞时,我们就会这样说。

If you have an umbrella, let me share it with you.

如你有伞，让我们合用吧。

It's not worth bothering with an umbrella ─ the car's just outside.

不必打伞——汽车就停在外面。

'Contact sports' is an umbrella term for a variety of different sports.

“接触式运动”是多种不同体育运动的总称。

Lisa took a step backwards.

莉萨向后退了一步。

He moved a step backward/ backwards.

他向后退了一步。

I took a step towards him

我朝他迈了一步。

Medium color choices are generally furniture pieces such as sofas, dinner tables or bookshelves. Color choices in this range are a step up from the small ones in two major ways ．

中等颜色的选择一般是家具件,如沙发、餐桌或书架。在这一范围内,颜色的选择在两个主要方面都比小的要高出一步。

We have made a step towards success.

我们已向成功迈进一步。

This is a step in the right direction, but we'd like to see the U.S. Sentencing Commission make further changes to the guidelines.

这是朝正确的方向迈出了一步，但我们仍希望看到美国量刑委员会对准则做出进一步的改变。

If you feel stressed by responsibilities at work, you should take a step back and identify those of greater and less importance.

如果你觉得工作中的责任给你带来压力,你应该后退一步,区分重要和不重要的责任。