Quadrinomial
a. 四项式的\\nn. 四项式
🗣️ 情景例句
for his ten o'clock appointment with you.
等着十点钟与你的晤谈。
I'll take it.
我买了。
I can lend you one and a few pieces of equipment.
我可以借给你一顶帐篷和几样装备。