Helium is a very light gas.氦是一种非常轻的气体。Helium is a gas used in balloons.氦是一种用于气球的气体.Unlike helium - 4, it cannot be produced by radioactive decay.与氦 - 4不同之处是, 氦-3不能由放射性衰变产生....
Clothes were everywhere; hanging out of drawers, strewn across the floor, even spilling from the wastepaper basket.到处都是衣服：挂在抽屉上、扔在地上、甚至堆在废纸篓里。To a Japanese, spilling anything is uncouth.对日本人来说, 泼溅任何东西都是不文明的。Some blokes g...