Chain fluorination
[建] 链上氟化
🧩 词语组成解析
chain
[tʃen]
n. 链子，链条;连锁，连续;拘束;连锁店或旅馆系列的事物;
vt. 用铁链锁住;监禁，束缚;
n. 氟化作用
🗣️ 情景例句
Because I don't want to be here.
因为我不想待在这 。
Don't forget to phone to let us know you arrived safely.
不要忘记打电话，告诉我们你已经安全抵达。
Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life.
几乎每天都可以看到一只小海豚把鼻子顶入一只300磅重的海龟的硬壳下面，拼命地把它翻过来。