Tained
(tain 的过去分词) n. 锡箔
🗣️ 情景例句
An individual's sex and characteristics are determinded by their unique set of genes.
个人性别和性格是由他们特有的一套基因决定的。
I ought to write a letter.
我应该写一封信。
She has been to school.
她上学去了。