some explanation

来源: 于 2009-11-05 08:19:54 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

When you chase a wild goose, can you catch it? Probably not.
"Chase a wild goose" or "on a wild goose chase" means to make a futile effort.

On the trot – one after the other.
He studied 3 days on the trot.
In AE, we like to use “in a row”. He studied 5 days in a row.

To quit the snake ladder - I have no idea :)