Osteolith
土磷灰石
🗣️ 情景例句
May I use the phone?
我可以用电话吗
How much will it cost?
这种商品成本价是多少？
I immediately embarked on an experiment which, even though if failed to get rid of the ants, kept me fascinated for twenty-four hours.
我当即动手作了一项试验，这项试验尽管没有使我摆脱这些蚂蚁，却使我着迷了24小时。