Day20

brood over

计较（尤指忿恨不满）；郁闷地沉思

例句：

AH, " said the jailer, "do not always brood over what is impossible, or you will be mad in a fortnight.

“噢，别老去想那些不可能的事，否则你不到二个星期就会发疯的！” 狱卒说。