Every office has a few humorists who can lighten tense meetings with well-timed jokes.

### 解释 humorists 是名词 humorist 的复数形式。humorist 由名词 humor（幽默）加上后缀 -ist（表示"从事某种活动的人"）构成，指"擅长运用幽默的人"或"幽默大师"。