to not do what one said one would do
不做自己说过会做的事情 (bù zuò zìjǐ shuō guò huì zuò de shìqíng)
"He went back on his word about helping me."
"他没有履行关于帮助我的承诺。" (Tā méiyǒu lǚxíng guānyú bāngzhù wǒ de chéngnuò.)
to be the best or most successful in a situation
a clever and intelligent person
to be physically fit and healthy
to exaggerate or overstate something
to relax after a period of hard work
aggressive or very direct form of advertising