The forests provide the humidity that is necessary for life. 森林提供生命所需的潮湿环境
Is a necessary contribution to its subsistence. 对于生存都是必需品
Taking from the earth only the strictly necessary. 仅仅向地球索取必需品
Rachel: Oh God, come on you guys, is this really necessary? I mean, I can stop charging anytime I want. 噢天哪,拜托大家,这样真的有必要吗?我的意思是,我随时可以忍住不乱花钱的。
necessary to maintain a mechanical heart valve. 而那是换人工瓣膜所必需的
You do only exactly as much as is necessary. 你仅仅做了你份内的事
all necessary arrangements for my coronation. 全力准备我的加冕仪式
The monkfish can wait, for days if necessary, 安康鱼可以等好几天
They only thrive in cold temperate seas for only these waters contain sufficient food necessary to fuel such a ravenous predator. 它们只呆在冰冷的海里,也只有大海才有充足的食物 供这种贪婪的掠食者享用