Phosphoranepentoic acid
[化] 正膦五酸; 原膦酸
🧩 词语组成解析
🗣️ 情景例句
Well, I'll tell Richard,
嗯， 我会告诉Richard，
Button holes are very hard to sew.
要缝钮扣洞非常难。
Were you in San Francisco at the time of the big earthquake in 1989?
1989年旧金山大地震时，你在那儿吗？