kè qi
说话挺客气
shuōhuà tǐng kèqi
Speaks quite politely
不客气地回绝了他。
bù kèqi de huíjué le tā
Refused him bluntly/impolitely
您坐，别客气
nín zuò, bié kèqi
Please sit down, don't be polite/make yourself at home