in和with是介詞,后面跟名詞.in 或with后加名詞=形容詞加ly,這句話的意思是說：In 或with 后加名詞就相當于是一個副詞,在句中作狀語.例如：
I will give him the present in person.
可變?yōu)?I will give him the present personally.
其中in person的意思是“親自”修飾動詞give,修飾動詞的詞是副詞,所以in person就相當于是一個副詞.
還有in general就等于generally,
He jumped with joy.可變?yōu)?br/>He jumped joyfully.
關(guān)鍵理解這句話In 或with 后加名詞就相當于是一個副詞.