While
01
一会儿, 间隔
a span of time
例子
She waited patiently for a while before the bus finally arrived.
He studied for a while before taking a short break to rest his eyes.
while
01
尽管, 虽然
despite the fact that; even though
例子
While she had reservations about the plan, she decided to go along with it.
虽然她对这个计划有所保留，但她决定同意。
While the weather was unfavorable, they went ahead with the outdoor event.
尽管天气不利，他们还是继续进行了户外活动。
02
而, 尽管
used to indicate contrast
例子
He did n't want to risk his reputation by being associated with the controversial project.
他不想在同时与有争议的项目有关联时冒险自己的声誉。
The north of the country experiences cold winters, while the south has mild weather year-round.
该国北部经历寒冷的冬天，而南部全年气候温和。
03
当...的时候, 在...期间
used to indicate a period of time during which an action takes place or a state of affairs exists, often denoting simultaneous or concurrent events
例子
The children played outside while the sun was shining.
孩子们在外面玩耍，而太阳正在照耀。
He listened to music while I did my homework.
他听音乐的时候我在做作业。
