horizontally
US /ˌhɔːr.ɪˈzɑːn.t̬əl.i/
UK /ˌhɔːr.ɪˈzɑːn.t̬əl.i/

1.
水平地, 横向地
in a horizontal direction or position; flat or level with the ground
:
•
The artist painted the landscape horizontally.
艺术家横向绘制了风景。
•
Lay the planks horizontally across the gap.
将木板水平放置在缝隙上。