Ratiometer
比率表
🗣️ 情景例句
You and Mommy used to take me on the ferryboat.
你和妈妈常带我坐渡船。
What did he tell you?
他告诉你什么？
The shuttle Endeavour will be taking the astronauts to the Hubble.
“奋进”号航天飞机将把宇航员送上哈勃。