VERB
仔细考虑;反复思考
If you mull something, you think about it for a long time before deciding what to do.
例句
Last month, a federal grand jury began mulling evidence in the case...
联邦大陪审团于上月开始仔细审查本案的证据。
Do you know why he was mulling and hesitating?
你知道他为什么前思后想、犹豫不决吗？