Firstclass
adv. 头等的
🗣️ 情景例句
Please remain calm, sir. Just give me your name and your location.
请保持镇静，先生。告诉我你的名字和所在地点。
Delivery costs will have to be borne by the manufacturer, I'm afraid.
运费恐怕要由制造厂商来承担。
Yes. If we go on polluting the world, it won't be fit for us to live in.
是的。如果我们继续污染世界，地球就不适合我们居住了。