Bhcs
abbr. 圆头帽螺钉；井眼补偿声波测井
🗣️ 情景例句
Would you do me a favour look around your factory?
能否帮忙带我看一下你们工厂？
I'm afraid you will fail.
我怕你会失败。
and found our then prevailing primitive state completely uninteresting to their own advanced knowledge.
并且发现我们地球当时普遍存在着的原始状态同他们先进的知识相比是索然无味的。