HSK V7-9
Correct

载体

/ zàitǐ / 
Strokes

Definition

carrier (chemistry)/vector (epidemiology)/vehicle or medium

Example

As a Noun
carrier
1
Cuīhuàjì
催化剂
zàitǐ
载体

catalyst carrier

As a Noun
vehicle; medium; carrier
2
Yǔyán
语言
shì
是
wénhuà
文化
de
的
zàitǐ
载体
  
。

Language is the carrier of culture.