滑 + 下 + Surface
滑 (huá) means "to slide" or "to slip," describing smooth, gliding movement across a surface. It is used for both intentional sliding, such as playing on a slope, and unintentional slipping on a slick surface.
小朋友们开心地从滑梯上滑下来。
Xiǎo péngyǒumen kāixīn de cóng huátī shàng huá xiàlái.
The children happily slid down the slide.
下雨天路很滑,你走路小心点。
Xià yǔ tiān lù hěn huá, nǐ zǒu lù xiǎoxīn diǎn.
The road is very slippery on rainy days, be careful when you walk.
他不小心在冰面上滑了一跤。
Tā bù xiǎoxīn zài bīng miàn shàng huá le yī jiāo.
He accidentally slipped and fell on the ice.