A contusion is a bruise: a place that has been hit hard enough for blood to pool under the skin. The skin often stays closed. This is the noun doctors put on reports and in textbooks; everyone else says bruise.

A contusioncontusion is a bruise就是瘀傷 a place that has been hit hard enough for blood to pool under the skin是被打得夠重、讓血液積在皮膚底下的地方 The skin often stays closed皮膚通常還是完整的，沒有破 This is the noun doctors put on reports and in textbooks這是醫生寫在報告和教科書上用的名詞 everyone else says bruise其他人則都說 bruise

The word itself does not tell you how bad it is — a contusion can be a small mark on the arm, or a serious blow to the chest or head. The doctor has to say that separately.

The word itself does not tell you how bad it is這個字本身不會告訴你傷得有多嚴重 a contusion can be a small mark on the armcontusion 可以只是手臂上的一個小痕跡 or a serious blow to the chest or head也可以是胸部或頭部的嚴重撞傷 The doctor has to say that separately醫生得另外說明嚴重程度

Though actually, people sometimes mix this up with concussion, which is a brain injury from a knock to the head. A contusion is the bruise in the flesh; a concussion is about the brain being shaken. You can have one, the other, or sadly both.

Though actually不過其實 people sometimes mix this up with concussion有些人會把它跟 concussion 搞混 which is a brain injury from a knock to the headconcussion 是頭部受到撞擊造成的腦部傷害 A contusion is the bruise in the fleshcontusion 是肉眼可見的瘀傷 a concussion is about the brain being shakenconcussion 則是腦部被震動到 You can have one, the other, or sadly both你可能只有其中一種，也可能很不幸兩種都有

In careful medical talk, a 'pulmonary contusion' is bruising of the lung, which is much more serious than a bruise you can see.

In careful medical talk在嚴謹的醫療用語裡 a 'pulmonary contusion' is bruising of the lung「pulmonary contusion」是指肺部的瘀傷 which is much more serious than a bruise you can see這比你看得到的瘀傷嚴重得多