Oscilloscopy
示波術(shù)
??? 情景例句
there will be a surprise.
會(huì)有一項(xiàng)讓你驚喜的事。
From 4 to 4:30.
四點(diǎn)到四點(diǎn)半。
If I win a lot of money I'll buy you a mink coat.
要是我贏了許多錢，我給你買件貂皮大衣。