Many people swear by vitamin C's ability to ward off colds.许多人深信维生素C能预防感冒。I swear by God I didn't mean it.我对上帝发誓我不是这个意思.I thought I saw him leaving, but I couldn't swear by it.我好象看见他离开了, 但我不能肯定....
'At least we weren't kidnapped.' — 'I'm glad of that,' was the laconic response.“至少咱们没被绑架。”——“对此我很庆幸，”答复就是这么简短的一句话。laconic dialogue对话简洁"At least we weren't kidnapped." — "I'm glad ...
...the internationally agreed rules of chemical nomenclature.国际公认的化学命名规则It developed variations in nomenclature and in substance.它在名称上和实质上都发生了一些变化.Multiply unsaturated compounds are usually best named by the IUPAC nomenc...