例句：
Brits stayed up a half-hour later to watch it, and then they woke up earlier than usual the next morning thanks to summer nights, the phenomenon in which the sun barely sets in northern countries in the summertime.
英國人熬夜看了半個小時后，第二天早上由于極晝而比平常早起床——極晝指北方國家夏季太陽幾乎不落山的現象。
I want to get there before the sun sets.
我想在太陽落山前趕到。
Before the sun sets on the third day.
在第三天太陽落山之前。
Light up when the sun sets. What time will the sun rise?
太陽落下時就點上燈。太陽將在幾點鐘升起？