Neflexine
蛇叶[尼润]碱
🗣️ 情景例句
He was my roommate in college.
他是我大学时的室友。
He has been to America.
他去过美国。[曾经有过的经验]
But even when such refinements are not available, there is plenty to keep you occupied.
即使没有这些消遣条件，也总是有事可做。