Florocid

氟化钠

🗣️ 情景例句

You think I can just skip it now and get to it at college?
你想我现在略过数学, 等到上了大学再学, 可以吗?
The water gets hot.
水变热了.
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。
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