What are you up to?
這句常用句的意思是:最近在忙什么?
A: I haven't seen you around lately. What are you up to?
A: 最近沒見到你。 在忙什么呢?
B: I'm working two jobs right now. It's killing me.
B: 我現(xiàn)在做兩份工作。很累很累!
"It's killing me." 是表示某事很折騰人的意思。
再如"Her singing is killing me." 她的歌聲很難聽!。