While breastfeeding is a natural act, it is also a learned behaviour.

母乳喂养是一个自然行为的同时，也同样需要学习。

youdao

Most often we do these social comparisons without realizing we're doing it. It's a natural act, I suppose, and as a result it's something that is done without consciousness.

我们经常没有意识到这种比较的发生，我认为这是自然行为，这是由于有些行为是无意识的。

youdao

In view of two layers, the prototype of the crime and the model of the crime, the author separates 'act' into three concepts: natural act, criminal act and act in criminal law.

笔者从犯罪原型与犯罪模型的两个不同层面，将“行为”分为“自然行为”、“犯罪行为”和“刑法上的行为”三个概念。

youdao

Dense planting of a crop can also act as a natural control.

VOA: special.2009.05.26

Sometimes you can design drugs that act like a natural ligand without being the natural ligand.

有时你能设计具有天然配体功能的药物,但它不一定和天然配体相同

耶鲁公开课 - 生物医学工程探索课程节选

But when you remember that the subject at hand is actually in some way sex, then you can begin to associate the Lady's image of this moderate consumption of natural wealth - with some version of -- if this makes sense -- some version of an act of sexual consummation.

但是当你们想起,现在讨论的话题其实是性，然后你们可以将这位女士,关于适量消费自然财富的形象,与一些版本--如果那有意义-,一些版本关于性圆满的行为联系起来。

耶鲁公开课 - 弥尔顿课程节选

Innovation as a natural act.

FORBES: How To Innovate - Without A Miracle

The new legislation is part of the Wildlife and Natural Environment Act, which will become law on 17 August as well.

BBC: Permanent ban for hare coursing in Northern Ireland

And, I can know that the forces of natural selection will act on tradition to make everything more or less, kinda-sorta work out, sometimes.

FORBES: Childless Keynesians And The Future They Made