It's what may happen, for example, after you strain – after you work your arms or your legs too hard.

例如，当你用力拉伤手臂或双腿后，可能会发生这种情况。

Baynes squatted in the bow, straining his eyes after the men pulling the other canoes upon the bank across from him.

贝恩斯蹲在船头， 盯着他对面岸边拉着其他独木舟的人。