to start working hard, especially after delaying
开始努力工作，特别是在拖延之后 (kaishi nuli gongzuo, tedian zai tuoyan zhihou)
"It’s time to knuckle down and finish this report."
"是时候开始努力工作并完成这份报告了。" (Shi shihou **kaishi nuli gongzuo** bing wancheng zhe fen baogao le.)
to betray someone who trusts you
to bend your body forward or downward
to decide to do something difficult or unpleasant that one h...
to design or aim something for a particular group
to make someone very sad, especially in love
to do extremely well on a test
