7岁的孩子中1/4以上都不会正确地做加法运算。More than a quarter of seven year-olds cannot add up properly.你谅必在商店里见过现金收入记录机,它基本上只能做加法运算.In shops you will have seen cash registers which basically can only add.这个小女孩不太善于做加法.The little girl is no...
The surroundings were not very salubrious.环境不很有益健康.Other employers have resorted to less salubrious solutions.另一些雇主所提供的住宿条件就没那么好了.Paper victories aside, the salubrious effect on humans was also recognized early on.除了在纸张上...
石灰岩常用于建筑.Limestone is often used in building construction.石灰岩上有许多缝隙，故而树根能从岩洞顶部长出来。The limestone is sufficiently fissured for tree roots to have breached the roof of the cave.当地石灰岩渗透性很强。The local limestone is very porous....