Castolin
铸铁焊料合金
🗣️ 情景例句
He was dumb from birth.
他生下来就是哑巴。
Our clients are very critical on quality.
我们的客户对商品的质量是很挑剔的。
I argued that if I spent less time exhausting myself at exercises in the morning,
我辩解说，早晨少耗费精力锻炼，