People are busy shopping and wrapping presents for relatives and friends before Christmas Eve.
在圣诞节前夜,人们忙着为亲朋好友买东西、包礼物。
We are running on two shifts.
我们实行的工作是两班倒。
Once we detected a planet, we would have to find a way of blotting out the light from its star, so that we would be able to 'see' the planet properly and analyze its atmosphere.