know·ing
adjective/ˈnəʊɪŋ/
/ˈnəʊɪŋ/
[usually before noun]- showing that you know or understand about something that is supposed to be secret
会意的；心照不宣的；知情的 - a knowing smile
会意的微笑 - The man at reception gave her the key with a knowing look.
接待处的男人用一种会意的眼神给了她钥匙。
Oxford Collocations DictionaryKnowing is used with these nouns:- glance
- grin
- look
- …
- a knowing smile