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worried
烦恼的，担心的
例句：
The old man felt worried about how to live in the cold winter.
这位老人为如何度过寒冷的冬天而担心。
try one"s hand
尝试，试身手
例句：
I thought I would try my hand at bowling, although I had never bowled before.
我虽然从没玩儿过保龄球，但我想尝试一下。
It"s a deal.
一言为定。
对话：
A: you pay for the supper and I will treat you to a movie. O.言小网.?
B: It"s a deal.
A：你付晚饭钱，我请你看电影，怎么样？
B：一言为定！