Biopathogen
生物病原
🗣️ 情景例句
Here's something for you.
这有东西送你。
How did he get away with cheating?
他是如何考试做弊而未被发现？
but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home, feeding its flown young as it flies,
在空中十分自如，可以飞行6，000英里，可以飞往北方做窝的老家，再从老家飞回；一边飞一边喂养会飞的雏燕，甚至在顶风时也能在气流中滑翔，似乎气流在帮它前进。