Polybromination
多溴化反应
🗣️ 情景例句
or the Museum of Natural History.
或自然历史博物馆。
Please excuse me for a little while.I want to do something.
请等我一会儿时间，我要做点事。
Also they make the tank look much prettier.
二来，它们还可以使容器看起来更漂亮些。