Naa
全国航空协会(美国)\\n[化] 中子活化分析
🗣️ 情景例句
Hello, how are you doing today?
你好， 今天怎么样？
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大约4点钟正在做什么？
We regard the matter as nothing important.
我们认为这件事情不重要。