Perinaphthindenylium cation
[化] 周萘茚阳离子
🧩 词语组成解析
cation
['kætaiən]
n. 阳离子;
🗣️ 情景例句
I can speak English as far as foreign languages are concerned.
就外语来说，我只会讲英语。
I hope the weather there is cold enough.
我希望那儿天气够冷。
for even though it was still summer, it rained continually and it was often bitterly cold.
因为即使那时仍为夏季，但雨总是下个不停，而且常常冷得厉害。