Correct

来势

/ láishì /
Strokes

Definition

momentum of sth approaching

Example

As a Noun

gathering momentum; oncoming force

1
Zhè
cháng
yùndòng
运动
láishì
来势
hěn
měng
  

The campaign came with a great momentum/power/drive.

2
Bàofēng
暴风雨
láishì
来势
hěn
měng
  

The onslaught of the storm is fierce.

3
Láishìxiōngxiōng
来势汹汹

bear down menacingly