The sky was changing from translucent blue to thicker grey.天空由通透的湛蓝色变成了暗灰色。Families have their problems and jealousies, but blood is thicker than water.家家有本难念的经，也都难免互生嫉妒，但总归血浓于水。Boil down the soup until it gets thicker. ...
We apologize unreservedly for any offence we have caused.若有得罪，我们深表歉意。You must apologize to her for having kept her waiting.让她等了这么久,你应该为此向她表示歉意.I must apologize for the dreadful mistake I made.我为我所犯的严重错误深表歉意....