Catskills
abbr. Catskill Mountains, southeastern New York 卡次启尔山脉，位于纽约的南部
🗣️ 情景例句
Oh yes, the May Fourth Movement. I've read about it.
哦，是的，五四运动，我听说过。
An nod is as good as a wink to a blind horse.
对牛弹琴。
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。