N-octadecanoic acid

[建] 硬脂酸

?? 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

Where's the bag with the chicken salad sandwiches?
放雞肉沙拉三明治的袋子在哪？
What's your family name?
你姓什么？
It is animals and plants which lived in or near water whose remains are most likely to be preserved,
只有生活在水中或水邊的動植物尸體最有可能被保存下來，
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