do sth on purpose 故意做某事
do sth on impulse 做某事一时冲动
do sth on the quiet 暗暗地做某事
do sth on the sly 偷偷地做某事
do sth on spec 投机地做某事
go on to do sth 继续做某事 ; 继续做事 ; 继续做另一件事情
do sth on my behalf 代表我做
do some research on sth 做某方面的研究 ; 做某方面的研讨 ; 做某方面得研讨 ; 做某方面地研讨
do research on sth 从事某方面的研究 ; 做某方面的研究
not do well on sth 做得不得力
是习惯搭配，意思是“在去做某事的路上”。
As a result of too exert oneself to do sth. on tiptoe, can make knee concerns because of tiptoe emphatic and too go up at leg abdomen forcibly, bring about turnip leg very easily.
由于过于在脚尖上用力，会使膝盖因为脚尖用力的关系而太用力于腿肚上，很轻易导致萝卜腿。
C put pressure on sb. to do STH.
向某人施压，迫使某人(做某事)。
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