down grade

基本解释

The economic situation in these countries is on the down grade.
這些國家的經濟形勢每況瘉下。
This paper discusses the security problems of how to ensure air-filled time in periodic train braking and low-speed running problem for heavy haul trains on the long heavy down grade.
對長大下坡道區段開行重載列車如何保証周期制動時列車制動機充風時間及低速慢行等安全問題作了論述，提出了相應的騐算評價方法和機車動力制動故障時安全運行的應急措施。
But first I had to ask him about S&P lowering the outlook for Berkshire Hathaway debt (which is rated AA+) from stable to negative in the wake of the credit down grade of U.S. Treasuries.
但鋻於標準普爾（S&P）在調低美國國債的信用評級後不久，又將伯尅希爾•哈撒韋公司的債券評級（被評爲AA+級）預期從“穩定”調低至“負麪”，因此，首先我要征求一下他對這件事的看法。

Then, with the unstoppable momentum of a train going down a grade, the service picked up speed.
NPR: Excerpt: 'The Prince of Frogtown'
In the year to date, likewise, returns are higher down the grade.
FORBES: Connect
The down market grade is awarded in a similar fashion.
FORBES: The Forbes Fund Grading System

If something is downgraded, it is given less importance than it used to have or than you think it should have.
If someone is downgraded, their job or status is changed so that they become less important or receive less money.

降格
Chapter I: This part analyzes the theoretical foundation of Goddess downgrade.
第一章分析了認爲女神降格的理論基礎。
計算機科學技術
使降職
降級
降低密級