1. The number of tourists from China has been on the ___.
(A) decline
(B) deceit
(C) diminish
(D) desecrate

decline (v.) 數目、比率上的下降

diminish (v.) (因消耗而)減少；數值、價值下降

deceit (n.) 謊言

desecrate (v.) 褻瀆

補充：

alleviate (v.) /əˈliː.vi.eɪt/ (痛苦)減輕；緩和

reduce (v.) (人為地)使某物的數量或重量減少

decrease (v.) 數量上減少；力量減弱

資料來源：VoiceTube

網址：https://tw.blog.voicetube.com/archives/9869

(A) decline 下降；衰退
(B) deceit 謊言
(C) diminish 減少
(D) desecrate 虛度的

on the decline 衰退中；減少中

(A) decline  (v) (數目)下降；衰退 

(B) deceit (n) 欺騙 詐欺

(C) diminish  (v) 減少

(D) desecrate  (v) 褻瀆

 解析

The number of tourists from China has been on the ______.

decline (v)（逐漸）減少，衰落，降低【用於趨勢】；拒絕

   EX.1.The party's popularity has declined in the opinion polls.

   民意調查顯示該黨的支持率已經下滑。 

   EX.2.He declined my offer.

   他拒絕了我的提議。

deceit (v)欺騙；欺詐

    EX.The story is about theft, fraud, and deceit on an incredible scale.

    小説描述了令人難以置信的盜竊、行騙和欺詐行為。

diminish (v)減少，減小，降低

    EX.I don't want to diminish her achievements, but she did have a lot of  help.

    我不想貶低她的成就，但她確實得到了很多幫助。

desecrate (v)褻瀆，玷污

    EX.The mosque/shrine was desecrated by vandals.

    清真寺／神殿遭到破壞分子的褻瀆。