space walk

常見例句

• Two spacewalking astronauts have been able to install a new camera in the Hubble Space Telescope.At first, they had trouble removing the old camera because of a stubborn bolt.
  兩名在空間行走的宇航員，現(xiàn)已可以在哈勃望遠(yuǎn)鏡上安裝新的攝像機(jī)，起初，因爲(wèi)一些不霛活的螺釘給去掉舊的攝像機(jī)造成睏難。
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