Recertification
n. 换发新证
🗣️ 情景例句
What has kept you so busy?
什么使你这么忙？
The frog is frightened at the sight of a snake.
那只青蛙因为看到了蛇而战抖。
Other types of bee make their nests in holes in the ground.
其他种类的蜂在地穴里筑巢。