in addition和in addition to的區別如下：
1、in addition 此外，另外，還有。如：
You need money and time, in addition, you need diligence. 妳需要金錢和時間，此外妳還需要努力。
2 . in addition to 除……之外。如：
We play football in addition to basketball. 除了籃球外，我們還踢足球。
註：in addition to 中的to為介詞，所以後接動詞作賓語時要用動名詞。如：
In addition to giving me some advice, he gave me some money. 他不僅給我提了些忠告，而且還給了我壹些錢。
另外，當主語後跟有in addition to引出的介詞短語時，謂語動詞仍與其前的主語保持壹致。如：
The teacher, in addition to his students, was interested in the book. 老師和他的學生都對這本書感興趣。