空中英語教室 while = although

HEALTH

「量化自我」讓你更有效率　What Is Self-Tracking All About？

收集個人資料可能會提升自我

Collecting personal data could lead to self-improvement

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Grammar gym

While self-tracking doesn't guarantee that one's quality of life will improve, it can highlight the importance of eating well and exercising daily.

while
Sam went to the store while Molly was at work.

while
although

example:
While bears generally don't attack people, it's important to keep a important to keep a safe distance if you see one in the park.
While it may appear to be a nice sunny day to to out on the lake, please be careful of a sudden change in the weather.