Polybromide
多溴化合物
🗣️ 情景例句
We had such a good time at the aquarium.
我们在水族馆玩得真开心。
One enemy is too much.
一个敌人也太多。
Come up these steps with me, please, and be careful.
请跟我走上这些台阶，请小心点。