Phrasal Verbs 句動詞: ask

ask for

求める

to say that you want sb to give you sth
if sb is asking for trouble or asking for it, they are behaving in a way that is likely to cause sth bad to happen to them
to say that you want to speak to sb or be directed to a place.

参考:

[Amazon] Oxford Phrasal Verbs Dictionary: For Learners of English

ask out

デートに誘う