Pentose nucleic acid (pna)
[化] 戊糖核酸
🧩 词语组成解析
adj. 酸味的;尖刻的;酸的;酸性的;
n. <化>酸;酸味物质;
acid尖,酸,锐利 →酸;酸的,酸性的
🗣️ 情景例句
He emphasized the importance of being honest.
他强调诚实的重要性。
It is easy to open a shop but hard to keep it always open.
开设店铺易,维持常开难。
Although being early may mean wasting a little time, this will be less than if you miss the train and have to wait an hour or more for the next one;
虽然早到可能意味着浪费一点时间,但这比误了火车等上一个多小时坐下班车浪费的时间要少,
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