Hit on someone:
打某人 ×
勾搭 √
例句：
He's trying to hit on that girl at the party.
他在派对上，尝试泡那女孩。
拓展：
Hit on something
敲打某物 ×
突然想到某事 √
例句：
He hit on an idea of sending his father a special present.
他突然想出一个主意，送给他爸爸一件特别的礼物。
Hit it off:
打某物下来 ×
合得来 √
例句：
These children hit it off well in the kindergarten.
这些小孩在幼儿园里相处得很好。
Hit the light:
打灯 ×
开灯 √
例句：
Could you please hit the light for me?
可以帮我开灯吗？
