Phosphinous acid

[化] 三價膦酸

?? 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

There are so many things to consider.
是有許多事情要考慮。
It is one thing to speak much and another to speak pertinently.
話講得多是一回事，講得恰當是另一回事。
Come, come. Get him his change, Tod.
得了，得了，給他找錢吧，托德。
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