Declivities
n. 下坡；倾斜
🗣️ 情景例句
Absolutely right, Frank.
完全正确 ，Frank。
Stop bossing me around!
别管闲事！
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。