alter, change

作不及物動(dòng)詞時(shí)，兩者可通用。

作及物動(dòng)詞時(shí)，alter是對(duì)局部，表面的改變，而change則是對(duì)本質(zhì)的，全面的，徹底的改變。如：Can you alter the dress? （你會(huì)改做這件衣服嗎？）Can you change the dress?（你能給我更換這件衣服嗎？）

already, all ready

already已經(jīng)（副詞）。如：The plane had already landed before we got to the airport.

all ready準(zhǔn)備好的（作表語(yǔ)）。如：We were all ready to leave when the telephone rang.

altogether，all together

altogether總計(jì)，總共。如：Altogether there are six of us. （我們總計(jì)六人。）

all together 全都在一起。如：We played the game all together. （我們大家都一起來(lái)玩游戲吧。）