doing something one is good at or enjoys
做自己擅长或喜欢的事情 (zuò zìjǐ shàncháng huò xǐhuān de shìqíng)
"He’s in his element when he’s cooking for friends."
"他在为朋友做饭时在他的元素中" (tā zài wèi péngyǒu zuò fàn shí **zài tā de yuánsù zhōng**)
to criticize or treat someone harshly
to smile broadly because of happiness
in strong disagreement or conflict
a beautiful and charming smile
it’s better to do something late than not do it at all
a very strong expression of gratitude