Bindheimite
水锑铅矿
🗣️ 情景例句
Please have your customs declaration form ready.
请把您的申报表准备好。
I like to play tennis,but I'm not a very good player.
我喜欢打网球，但是我不是一个很好的运动员。
Then knowledge began to be accumulated according to a systematic plan.
于是，知识便开始有系统有计划地积累起来。