Correct

臂助

/ bì zhù / 
Strokes

Example

As a Verb

aid; help

1
Lǚ
屡
chéng
承
bì
臂
zhù
助

having received your frequent aid

As a Noun

assistant; help

2
Shōu
收
wéi
为
bì
臂
zhù
助

take in as an assistant