Correct

重担

/ zhòngdàn / 
Strokes

Definition

heavy burden/difficult task/great responsibility

Example

As a Noun

heavy burden; difficult task; load; great responsibility

1
Qiānjīnzhòngdàn
千斤重担

colossal/weighty responsibility

2
Zhòngdàn
重担
zài
在
jiān
肩

shoulder heavy responsibilities (for sth)

3
Bǎ
把
zhòngdàn
重担
liúgěi
留给
zìjǐ
自己

take the difficult tasks for oneself

4
Tiāo
挑
zhòngdàn
重担

shoulder heavy burdens/responsibilities