Hartman's solution
[医] 哈特曼氏溶液(牙质脱敏剂)
🧩 词语组成解析
🗣️ 情景例句
I must have see you somewhere before.
我一定在哪里见过你。
I want to make an overseas call to the United States?
我想打个电话到美国去。
It lasts from May to July.
从5月持续到7月。