Spermidine
亚精胺
🗣️ 情景例句
Well, welcome to New York.
噢 欢迎你们到纽约来。
I'm writing to a friend of mine in South American.
我在写信给一个美国南部的朋友。
A few days later about 140 black people were taken and put on a tall sailing ship waiting off the coast.
几天以后，大约140名黑人被带到一艘停靠在海岸边的大帆船上。