kě shì
大家虽然很累，可是都很愉快。
dà jiā suī rán hěn lèi, kě shì dōu hěn yú kuài
Although everyone is very tired, they are all very happy.
她家媳妇那个贤惠，可是百里挑一。
tā jiā xí fù nà ge xián huì, kě shì bǎi lǐ tiāo yī
Her daughter-in-law is so virtuous and capable, she's truly one in a hundred.