Learn to cry.

学会流泪。

youdao

I did not learn to cry, now I often burst into tears.

从前的我没学会哭泣，现在的我时常泪流满面。

youdao

For example, infants learn that when they cry or smile someone responds to them.

例如，幼儿知道当他们哭泣或微笑时，有人会回应他们。

youdao

It is much easier to cry in front of my television and feel helpless than to learn what these weapons are, what they do and what I can do to make events like Newtown, Aurora, Tuscon and Virginia Tech less likely to happen again.

CNN: Gun control: It's on all of us