contagious

kәn'teidʒәs

托福GRE Collins 1

s. easily diffused or spread as from one person to another

a. 触染性的, 会蔓延的
[医] (接)触(传)染的

Collins 星级

15,314

BNC 频率

11,527

使用频率

contagious 可以拆分为词根 tag（接触）和前缀 con-（一起），意思是通过接触传播的，通常用于描述疾病等。

例句

1. The flu is a contagious disease that can spread quickly.

流感是一种可以快速传播的传染病。

2. She stayed home from school because she was contagious.

她因为有传染性而呆在家里，没有去上学。

3. Laughter is contagious; it can make everyone around you smile.

笑声是有感染力的，它可以让你身边的每个人都微笑。