| 释义 | 
		 weight·lessBrE /ˈweɪtləs/NAmE /ˈweɪtləs/ adjectivehaving no weight or appearing to have no weight, for example because there is no  gravity  无重量的;似无重量的;失重的◆Astronauts work in weightless conditions.  宇航员在失重的条件下工作。  astronaut,  countdown,  dock,  launch,  mission,  orbit,  rocket,  satellite,  space,  weightless ▸ weight·less·ness BrE /ˈweɪtləsnəs/NAmE /ˈweɪtləsnəs/ noun [U]  |