Celanite
方铈镧钛矿
🗣️ 情景例句
Leave me alone.
让我一个人呆会儿。
We think $ 87,000 per unit with a five percent discount for orders over 100.
我们减少到每台8。7万美元，订购超过100台给予5%的折扣。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。