The entrance hall is littered with toys and wellington boots.门厅里到处乱扔着玩具和雨靴。His excellency the President will be waiting for you in the hall.总统阁下会在大厅等你。The car pulled in and double-parked in front of the town hall.车在市政大厅前...
水中的一点点酸就会杀死鱼卵和小鱼.Fish eggs and young fish are killed by even a little acid in the water.鱼卵在马拉松运动员衣服上做 什么 ?What are fish eggs doing on a marathon runner's shirt?鱼卵比它们长成后的鱼致密250倍.Roe are 250 times more compact than th...
Their numerical system, derived from the Babylonians, was based on multiples of the number six.他们的数制源自古巴比伦人，以数字6的倍数为基数。The sexagesimal scale, or number system based on 60, was used by ancient Babylonians.古巴比伦人用六十进位制, 即以6...