如果你感到疲劳到失去视觉焦点这一极限时，无论如何，你都应该坚决不再操作大型机器。
If you feel tired to the point of losing visual focus, you should definitely not be operating heavy machinery - no matter what.
如果你感到慢性疲劳，这也许是甲状腺机能减退的征兆。
If you are chronically fatigued, it may be a symptom of hypothyroidism.
如果你正在练习半马或者全马，毫无疑问会在长跑后感到疲劳。
If you're training for a half marathon or marathon, it's definitely normal to feel tired after long runs.
应用推荐