Spermine
n. 精素\\n[化] 精胺; 精素
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
Knowledge is the antidote to fear.
知识可以解除恐惧。
On the B.B.C. you can hear the clock when it is actually striking because microphones are connected to the clock tower.
当大钟打点的时候，你可以从英国广播公司的广播中听到，因为钟塔上接了麦克风。