Orificemeter
锐孔流速计, 测流孔
🗣️ 情景例句
I've been thinking.
我一直在考虑。
You must not pledge your own health.
切不可把健康作孤注一掷。
I've always dreamt of coming to China, and now my dream has come true.
我做梦都想到中国来，而现在我的梦想成真了。