Langbeinite
n. [化] 无水钾镁矾
🗣️ 情景例句
Sure.
当然。
So he keeps on studying after his English classes in order to prepare for life in America.
所以他在英语课下课后还继续学习，为以后在美国生活做准备。
It's worth every penny of it.
它确确实实值这么多钱。