Microdensitometry
微密度测定
🗣️ 情景例句
Saving them for today?
留着等今天？
Would you help me lift this heavy box?
你将帮助我提起这个重盒子吗？
But I'm learning to skate. What's the weather like in Australia?
不过我正在学溜冰。澳大利亚天气怎样？