annually
adv. 每年，一年一次地
例句
The exhibition is held annually.
这个展览每年举行一次。
《牛津词典》
Companies report to their shareholders annually.
各公司每年向其股东们汇报一次。
《柯林斯英汉双解大词典》
Prune established plants annually as new shoots appear.
每年嫩芽长出来时，要给长成的植物剪枝。
