abbr.did not 没有;
例句:
I didn't realize how heavy that shopping was going to be.
我没想到买的东西会有多沉。
I think it'sfair to say that it didn't sound quite right.
我想应该说那听起来可不太对。
I didn't know Ron had that much strength of character.
我当时不知道罗恩有那么坚强的个性。