我们在河边看到几只掠水鸟快速掠过水面捕食小鱼。

We saw several ___skimmers darting across the water's surface to catch tiny fish.

游泳池安装了新的撇渣器来清除水面上的树叶。

The swimming pool has installed new ___skimmers to remove leaves from the water surface.

他买了一双舒适的凉鞋，适合炎热的夏天穿。

He bought a pair of comfortable ___sandals for the hot summer days.

他读书总是很粗略，常常错过故事的关键点。

He reads like a ___skimmer, always missing key points in the story.