Orthopositronium
正阳电子素; 正电子对素
🗣️ 情景例句
I consider him a genius.
我认为他是天才。
Few words are best.
少说为妙。
At the base of the gold cap, the words 'made in the U.S.A' had been nearly inscribed.
笔帽下方整齐地刻有“美国制造”字样。