Fluorochemical
[机] 氟化物
🗣️ 情景例句
Will I be able to receive the goods by the end of September?
我可以在9月底以前收到货吗？
One wrong thought may cause a lifelong regret.
一念之错可铸终生之恨。
yet following her regular practice she had shut them before going out.
而她记得在出门买东西前，她按老规矩是把房门一一锁上的。