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小测验：选择正确的单词
- 论坛新贴
weightlessness ['weitlisnis]
基本释义
- n. 无重状态
词形变化
- 名 词：weight'less·ness副 词：weight'less·ly
参考例句
- Astronauts in flight must adjust to weightlessness.
飞行中的宇航员必须适应失重现象。
- Astronauts in flight must adjust to weightlessness.
英英解释
1个名词解释
- the property of being comparatively small in weight
[同] lightness, weightlessness
[反] heaviness, weightiness
[例]- the lightness of balsa wood
- the property of being comparatively small in weight