Femtometre
非姆托米
🗣️ 情景例句
to move the air-conditioning units
移动空调设备
He that knows nothing,doubts nothing.
无知即无疑。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。