Another way is to make sure containers are fitted with tight covers.

另一种方法是确保器装有密封。

If the bromeliad's water tank is too large, then the frog's head can't form a tight seal around the opening.

如果凤梨水池太大，那树蛙的头部就不能形成紧紧锁住凤梨孔的密封。

Each bottle is filled, capped, cleaned, and labeled by hand here.

每个瓶子都在这里手工灌装、封、清洗和贴标签。

And it looks like your distributor cap's a little loose.

看起来你的配电盘封有些松了。

Once I'd removed all the bad ones, then I had to pull a lever down which put a lid on the tins.

在把所有坏的都挑完之后，我必须去拉下一根控制杆来帮罐头封。

For the next nine days until the well was capped, the well poured out more oil than all the wells in America combined.

在接下来的 9 天里，直油井被封，这口油井涌出的石油比美国所有油井的总和还要多。

Once the landfills are full, they are capped with a layer of earth, but levels of contamination " would breach human health guidelines" .

一旦垃圾填埋场达量，它们会被一层土封，但是污染物的水平将会超出人类健康指南的限制。

Proponents of capping have long promised that it would be the end of the problem, but Spencer is compelled to keep reminding people that, oh no, it isn't.

封的支持者长期以来一直承诺封将解决问题，但 Spencer 不得不一再提醒人们，情况并非如此。

Her hands trembled as she groped for the matches and lit her candle, and the flap of the envelope was so closely stuck that she had to find her scissors and slit it open.

当她摸索着寻找火柴并点燃蜡烛时， 她的手颤抖着，信封的封紧紧地粘在一起， 她不得不找剪刀将它剪开。