matter

n.

1. 事情；問題；事件[C]
   It was a matter of life and death for them.

   這事對他們來說是生死攸關。

2. 麻煩事，毛病[the S][（+with）]
   There's something the matter with this car.

   這輛汽車有點毛病。

3. 物質[U]
   Matter exists in three states: solid, liquid and gas.

   物質以三種形態存在，即固態、液態和氣態。

4. （文章等的）素材，內容；主題[the S]
5. 事態；情勢[P]
   Matters are different from country to country.

   情形因國家而異。

6. 重要性[U]