Difluoride
二氟化物
🗣️ 情景例句
Being with him helped.
和他在一起有帮助。
We can assure you that our products are the most outstanding ones on the market today, and we offer a five-year guarantee.
我们可以向您保证我方产品是当今市场上最好的，并且可提供5年保修期。
By the end of October 1886, the statue had been put together again and it was officially presented to the American people by Bartholdi.
到1886年10月底，这座雕像被重新组装起来，由巴索尔地正式赠送给美国人民。