Bhcs
abbr. 圆头帽螺钉；井眼补偿声波测井
🗣️ 情景例句
He started with them almost forty years ago.
他在那里做了快四十年了。
Just for argument's sake, suppose we disagree.
为了讨论各种情形，让我们假设我方不同意时的处理方法。
In it there was a boatman fast asleep.
船上有一船夫在呼呼大睡。