Hafnyl
铪氧基
🗣️ 情景例句
We will help your children in learning lessons in their free time.
我们可以帮助您的孩子在他们空闲时学习功课。
Wit once bought is worth twice taught.
亲身一次的经验，抵得上老师两次的教导。
I would like to suggest that we take a coffee break.
我建议我们休息一下喝杯咖啡。