太阳每天都落下用英文表达是：The sun sets every day.
例句：
Thee sun rises in the east and sets in the west every day.
（图片来自网络侵删）
太阳每天从东方升起，在西方落下。
相关介绍sun sets 的例句：
The sun sets early in winter.
冬天的太阳落得早。
What happens after the sun sets?
日落后发生了什么呢？
When I go out as sun sets and dusk falls, there is the Evening Star.
当夕阳西下、夜幕降临时，我走出去，昏星就在那里。
The sun sets as the team play a short match at Randburg High School.
队伍在兰德堡高中进行了短时比赛后，太阳就落山了。
