to start over again because the previous plan failed
因为之前的计划失败了，所以重新开始 (yīnwèi zhīqián de jìhuà shībàile, suǒyǐ chóngxīn kāishǐ)
"Our experiment failed, so we have to go back to the drawing board."
"我们的实验失败了，所以我们必须重新开始。" (wǒmen de shíyàn shībàile, suǒyǐ wǒmen bìxū **chóngxīn kāishǐ**)
to gradually enter a state or start wearing something
to succeed in maintaining peace after a conflict
to be in a very difficult or desperate situation
to smile and bring happiness to others
something or someone that is difficult to understand
to say something embarrassing or inappropriate by mistake
