[fā xiàn]
find; discover
find some clues
发现一些线索
discover problems and solve them
发现问题， 解决问题
spot an enemy gunboat
发现敌炮艇一艘
an epoch-making discovery
划时代的发现
an important archaeological find [discovery]
考古学上的一项重要发现
discover and employ qualified personnel
发现人才， 使用人才
discover the law of ...
发现规律
Enemy planes were picked up by our radar.
敌机被我们的雷达发现了。
Harvey discovered the circulation of the blood.
哈维发现了血液的循环。
In experimenting we find out that sound travels with different velocities through different substances.
在实验中， 我们发现声音以不同的速度通过不同的物质而传播。
I didn't notice anything.
我没有发现什么情况。
If you find anything wrong with the machine, you should put it right at once.
发现机器有故障， 要及时排除。