Observation door
[化] 看火门
🧩 词语组成解析
door
[dɔr]
n. 门，户;出入口;一家[户];通道;
🗣️ 情景例句
Mike and I had a hamburger at the diner. Mike
和我在火车厢餐厅那里吃了汉堡。
I'm afraid so.
恐怕是这样。
As it is, they have been drilling for sixteen hours and they still have a long way to go.
实际情况是，他们已连续钻了16个小时了，但离钻透还早着呢。