释义：
check on 确认
check on somebody (something) 可以用来确认某事进行顺利与否，安全与否等。
例句：
I called my apartment and checked on my grandma.
我给家里打了电话，问奶奶情况怎么样。
Jack ran forward to check on what was going on.
杰克急忙跑了过去，确认一下出了什么事。
I checked on her but she's a little unstable today.
我今天看了看她，发现她情绪有点不稳定。
Hold on. Let me just check on the baby!
稍等，我来看看孩子的情况！
对话：
A: Where did Steve and Adrian go?
史蒂夫和阿德里安去哪了？
B: They had to check on their kids.
他们去看孩子有没有事。
