The pleurae are serous membranes, which mean they secrete a lubricating fluid, called serous fluid.
胸膜为浆膜,这意味着它们可以分泌润滑液体,即浆液。
The pleurae are serous membranes, which mean they secrete a lubricating fluid, called serous fluid.
胸膜为浆膜,这意味着它们可以分泌润滑液体,即浆液。
Gear must be properly lubricated.
齿轮当地加油润滑。
声明:以上例句、词性分类均由互网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。