ATS

名词 at:

1. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
   同义词：astatine, At, atomic number 85
2. 100 at equal 1 kip in Laos
   同义词：at

1. They estimated the number of visitors at 10 million.
   他们估计参观者人数为1000万。
2. He computed his losses at USD5,000.
   他估计自己损失5000美元。
3. The tariff at the hotel ranges from 20 dollars to 50 dollars a day for a single room.
   旅馆的单人房间的价钱每天从20美元到50美元不等。
4. The video is programmed to switch on at ten o'clock.
   电视机设定在10点钟自动打开。