Radiosource
射电源
🗣️ 情景例句
She's through with her new boyfriend.
她跟新交的男朋友吹啦。
It's faster but more expensive to ship goods by air.
空运较快但运费较高。
What are you doing? he asked. I'm cutting this tree up, answered the woodcutter.
“你在做什么？”他问。“我在把这棵树砍断，”伐木工人回答道。