Soler
钎焊剂
🗣️ 情景例句
It is not as difficult as it looks.
这并不像看起来那丢难。
Think all you speak, but speak not all you think.
想想你所说的一切，不要全部说出你所想的。
What happened before printing was invented?
印刷术发明以前是怎么一回事？