今天很忙，我累坏了。I had a busy day and was rather tired.他在屋里走来走去，忙着把自己的东西放在一起。He moved around the room, putting his possessions together.餐馆晚上生意好，厨房里可能会忙成一片。A busy night in the restaurant can be frantic in the kitchen....
Two main glacial epochs affected both areas during the last 100 million years of Precambrian times.在前寒武纪的最后1亿年中，两个主要的冰川时期对两个地区都产生了影响。Cubism , Abstractionism, and Pop art have all been epochs in the postrealistic era.立体派 ...