名詞 dais:

1. a platform raised above the surrounding level to give prominence to the person on it
   同義詞：podium, pulpit, rostrum, ambo, stump, soapbox

1. He has a 10-miles' drive each day to and from his work.
   他每天上下班要開(kāi)10哩的車(chē)。
2. The tariff at the hotel ranges from 20 dollars to 50 dollars a day for a single room.
   旅館的單人房間的價(jià)錢(qián)每天從20美元到50美元不等。
3. Her diet restricts her to 1500 calories a day.
   她的規(guī)定飲食限制她每天攝入1500卡的熱量。
4. The average output of the factory is 20 cars a day.
   該工廠的平均產(chǎn)量是每天20輛汽車(chē)。

da.is

n.（名詞）
A raised platform, as in a lecture hall, for speakers or honored guests.
高座，上座：高出的講臺(tái)，如在演講廳，為演講者和尊貴的客人準(zhǔn)備的

來(lái)源：
Middle English deis
中古英語(yǔ) deis
from Anglo-Norman [platform]
源自 英法語(yǔ) [講臺(tái)，月臺(tái)]
from Late Latin discus [table]
源自 后期拉丁語(yǔ) discus [桌子]
from Latin [discus, quoit] * see disk
源自 拉丁語(yǔ) [鐵餅，環(huán)圈] *參見(jiàn) disk