PHRASAL VERB （顺道）造访，看望，探望 If you look in on a person or place, you visit them for a short time, usually when you are on your way somewhere else. （顺道）造访，看望，探望 [Also VERBPREPOSITION]
I looked in on Louisa. She was sleeping. [VPon n]
我顺道去看了一下路易莎。她当时在睡觉。
look-inˈlʊkˌɪn
N-SING 参加的机会；受到注意的份儿 If you are trying to take part in an activity and you do not get a look-in, you do not get the chance to take part because too many other people are doing it. 参加的机会；受到注意的份儿 [British, informal]
They want to make sure the newcomers don't get a look-in.