A " stress fracture" is less serious than a compound fracture.

“应力性骨折”不如复合性骨折严重。

Apparently Sidney had a compound fracture in his ankle.

显然，西德尼的脚踝有复合性骨折。

A " compound fracture" is when the bone is broken into one or more pieces and often the bone comes out through the skin.

“复合骨折”是指骨头断裂成一块或多块，并且通常骨头会从皮肤中脱出。

In the past, I've had a compound fracture in my ankle and a stress fracture in my wrist, and they both hurt a lot more than this.

西德尼：过去，我的脚踝有过复合性骨折， 手腕有过应力性骨折， 它们都比这疼得多。