smoothly

例句：

1. 1.The car drove smoothly down the highway.
   汽车沿着高速公路平稳地行驶。
2. 2. The painting was painted smoothly by the artist.
   这幅画被艺术家以平滑的手法绘制完成。
3. 3.The floor of the room was smoothed with a soft cloth.
   房间的地板被柔软的布料擦拭得非常平滑。