柯林斯詞典weightless /?we?tl?s/ 1. ADJ Something that is weightless weighs nothing or seems to weigh nothing. 無重量的; 似無重量的 Photons have no mass – they are weightless. 光子沒有質(zhì)量——它們是沒有重量的。2. ADJ A person or object is weightless when they are in space and the Earth's gravity does not affect them, so that they float around. 失重的 Helen described life in a weightless environment during her period in space. 海倫描述了她身処太空時失重狀態(tài)下的生活。 返回 weightless劍橋詞典having or appearing to have no weight 無重量的；失重的；似無重量的 There is a lot of interest in carrying out experiments in the weightless conditions which are experienced aboard space stations . 在空間站那種失重狀態(tài)下做實騐非常有趣。 返回 weightless