Correct

力道

/ lì dào / 
Strokes

Definition

strength/power/efficacy

Example

As a Noun

physical power/strength

1
Lìdào
力道
dà
大

have great strength

As a Noun

effect; potency; efficacy

2
Zhè
这
yào
药
hěn
很
yǒu
有
lìdào
力道
  
。

This medicine is efficacious.