Fluosilicate
[机] 氟硅酸盐
🗣️ 情景例句
and made me feel more confident.
使我对自己更加有信心。
A man that breaks his word,bids others to be false to him.
人不守信，无异于叫旁人对他失信。
But the historian attempting to reconstruct the distant past is always faced with a difficult task.
但是，历史学家企图重现遥远的过去可是一项艰巨的任务，