Recertification
n. 换发新证
🗣️ 情景例句
young and old.
不管是年轻的， 还是年老的。
It is lost labour to sow where there is no soil.
没有土壤，播种也是徒劳。
He fills each of the stockings with Christmas presents.
他给每一只长统袜装上圣诞礼物。