Ikes
[化] 离子动能谱法
🗣️ 情景例句
Do either of you have any reason
两位之中可有哪位因为某项原因
Drowning man will catch at a straw.
溺水的人一根草也要抓。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，