Second-growth isotope
[化] 次生同位素
🧩 词语组成解析
second
['sɛkənd]
n. 秒;瞬间;次货;第二份食物;
adj. 第二的;次要的;居第二位的;另外的;
adv. 第二;其次;以第二位;
vt. 支持;临时调派;附议;赞成提案;
sec跟随+ond=one第一→跟随第一个之后→第二；秒
🗣️ 情景例句
It's getting late. Please excuse me, but I must leave right away.
时间不早了。对不起，我得赶紧走了。
Exactly.
完全正确。
I have had so many falls that I am black and blue all over.
我摔了好几跤，全身又青又紫。