a secret enemy
一个秘密的敌人
"Be careful; there’s a snake in the grass."
"小心；草丛里有一个秘密敌人。"
to stop working for the day
To speak honestly and sincerely.
to start something, especially a project or task
to make a mistake or fail to do something important
used when expressing a sincere or frank opinion
to understand the full scope of a situation or problem
