lighter-than-air

英 ['laɪtərð'æn'eər] 美 ['laɪtərð'æn'eər]

• adj. 比空气轻的

英英释义

Adjective:

1. relating to a balloon or other aircraft that flies because it weighs less than the air it displaces

例句

用作形容词 (adj.)

1. Hydrogen is much lighter than air.
   氢比空气轻得多。