Pinicortannic acid

[化] 赤松單寧酸

?? 詞語組成解析

acid ['?s?d]
adj. 酸味的;尖刻的;酸的;酸性的; n. <化>酸;酸味物質;
acid尖,酸,銳利 →酸;酸的,酸性的

??? 情景例句

Very few people last in this class for the full hour the very first time.
很少人能夠第一次撐完一個小時的課。
I'm not leaving until I see you.
不見不散。
Needless to say, the bigger the risk an insurance company takes, the higher the premium you will have to pay.
不用說,保險公司承擔風險越大,你付的保險費也就越高。
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