Microchronnometer
微动计时器
🗣️ 情景例句
But when do they do it?
但是什么时候动手术？
What platform does the train leave from?
这班车从哪个站台开出呢？
A long time ago, one of his ancestors who lived in Africa went into the forest to cut down a tree to make a drum.
很久以前，他那生活在非洲的祖先中有一人走进森林去砍树来做鼓。