Karidium
氟化钠
🗣️ 情景例句
It's not necessary to whisper, Harry.
没有必要压低声音说话， Harry。
Better some of a pudding than none of a pie.
聊胜于无。
In the early 1980s, the computer giant, IBM produced the world's first Personal Computer.
80年代初，计算机行业的王牌公司美国国际商用机器公司（IBM）生产出了世界上第一台个人电脑。