You use additionally to introduce something extra such as an extra fact or reason.
例句
You can pay bills over the Internet. Additionally, you can check your balance or order statements...可以在网上支付账单。此外，还能查对余额或订货结算单。The maintenance programme will additionally seek to keep the sites free of graffiti.这个维护方案还会试图保护这些地点不被涂鸦。
ADV
额外地；分外地；更加
Additionally is used to say that something happens to a greater extent than before.
例句
The birds are additionally protected in the reserves at Birsay...鸟类在伯赛的保护区尤其受到保护。He will sign a personal guarantee to additionally secure the loan.他将签订一个个人担保，以此为贷款多加一层保障。