Valves
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
Is it too late to cancel our plans?
现在取消我们的计划是否太迟了？
All our garments are now poly-cotton, which is stronger, needs little ironing, and allows variations in patterns.
现在我们的服装都是涤棉料的，质地坚韧，不用熨烫并且花样繁多。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.
然而，在和外星人联系中我们遇到的最大困难是分隔我们的天文距离。