at后面加什么地方

　　Red wine is fermented at a higher temperature than white.

　　紅葡萄酒發酵的溫度比白葡萄酒高。

　　English is a compulsory subject at this level.

　　英語在這一級別是必修科目。

　　Interest is charged at a flat rate of 11%.

　　利息按標準比率11%收取。

　　We left at first light.

　　我們黎明時離去。

　　She was still half asleep when she arrived at work.

　　她到了上班地點時仍然睡眼惺忪。