英国表示愿意取消贸易禁令。Britain was signalling its readiness to have the embargo lifted.法官给他下了禁令，禁止他进入市中心的店铺。The judge placed an exclusion order on him, banning him from city centre shops.象牙贸易禁令a ban on the ivory trade...
Astronauts work in weightless conditions.宇航员在失重的条件下工作。...weightless silk curtains.轻柔的丝质窗帘Photons have no mass—they are weightless.光子没有质量——它们是无重的。Helen described life in a weightless environment during her period in space...