Certain annuity
[医] 一定年金\\n[经] 确定年金
🧩 词语组成解析
certain
['sə:tən]
adj. 某一;必然的;已确定的;
pron. [动词用复数]某些;
🗣️ 情景例句
Please come in, Mr. Wilson.
请进，威尔逊先生。
Ack! Snake!
哗！是蛇！
In summer it is often too hot, and in winter it is too cold.
夏天常常太热，冬天又常常太冷。