Correct

硬挣

/ yìng zhēng /
Strokes

Example

As an Adjective

strong; heavy-duty; (of paper, etc) hard and elastic

1
Niúzhǐ
牛皮纸
hěn
yìng
zhēng
  

The kraft paper is very tough and elastic.

As an Adjective

vigorous; forceful; strong; powerful