Prodag
半胶态石墨悬浮液
🗣️ 情景例句
Of course, I'll visit at least once a year, maybe more.
当然，我最少每年会来拜访一次，也许更多次。
Without method, little can be done to any good purpose.
不讲究方法，办事就没有成效。
Because of his revolutionary views, he spent many years in prison.
由于他的革命观点，他在监狱里度过了许多年。