🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
case
[kes]
n. （实）例，事例;情况，状况;诉讼（事件），案件，判例;容器（箱，盒）;
vt. 把…装入箱（或盒等）内;加盖于;包围，围住;[俚语]（尤指盗窃前）探察，侦查，窥测;
cas(to fall)+e→事件；事情；场合；状态；诉讼事件；患者
voice
[vɔɪs]
n. 嗓音;（动词的）语态;呼声，发言权;歌唱才能;
vt. 发音;表达，说出;给（一部乐曲）配上声部;给（如管风琴音管）整声;
🗣️ 情景例句
I'd like to talk with you about something troublesome.
我想同你谈点麻烦事。
From all listed prices we allow a discount of 10 percent on orders received on or before 31st May.
5月31日或此前收到的订单，我们都按价目单上的价格给10%的折扣。
Sure enough, a policeman arrived on the scene and politely asked the workmen to go away.
果然，警察来了，不礼貌地请工人离开此地；