台上有不透水的罩篷.There was a waterproof canopy over the platform.它不能通过云母这样的不透水的物质.It could not pass through material impervious to water such as mica.皮肤的外层不透水.The external layer of the skin is relatively impermeable to water....
名词mouse是 mice 的单数形式.The noun " mouse " is the singular form of " mice " .法语不同于英语,所有的名词都有性.French differs from English in having gender for all nouns.在the black cat这一词组中,形容词 black 修饰名词cat.In " the black cat " the adjectiv...