Tetrabromide
四溴化物
🗣️ 情景例句
Hello, Mrs. Herrera. Hi, Carl, how you doing?
你好，Herrera太太，嗨，Carl，你怎么样啦？
One never loses anything by politeness.
有礼貌对自己不会吃亏。
The first question to answer is whether a planet can actually support life.
第一个需要解答的问题是一颗行星是否有能够维持生命的条件。