Sclerotesta
n. [植]硬果皮
🗣️ 情景例句
She was sick so the didn't attend her classes.
她生病了，所以没上学。
A bear growls.
熊在吼叫。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，