Correct

弄通

/ nòngtōng / 
Strokes

Definition

to get a good grasp of

Example

As a Verb

get a good grasp of; understand fully

1
Nòng
弄
tōng
通
yīngyǔ
英语
yǔfǎ
语法

get a good grasp of English grammar; have a good grounding in English grammar