put in a good word for sb; praise by word of mouth; speak in praise of ? 我們一事無成，你卻一味～，又有何益？ We have achieved nothing but you keep speaking in praise of us. What’s the use of it?
口角春風(fēng)kǒu jiǒo chūn fēnɡ
口角：嘴邊；春風(fēng)：春天的風(fēng)能使萬物復(fù)蘇。比喻替別人說好話。give verbal praise, speak in praise of, pay compliments to, praise by word of mouth