如:
In handing down this sentence， Judge said it‘s nessesary to deter others
這裏的In doing 相當於When handing down this sentence
表示“在做...時”，可看做一個時間狀語
doing開頭一般來説 是動名詞做主語，位於句首，謂語動詞要用單數。
Playing on the beach is a pleasant thing for me.
Doing exercise every day makes us healthier and healthier.
1，be fortunate in doing sth做某事是幸運的 .
2，be busy in doing sth忙於做某事 .
品位站
