Explanation: "Sweep" means to brush lightly, which means that the swallow flies lightly and quickly, and it passes in an instant.
Attachment: The original version of Swallow, the sixth volume of the curriculum specimen of People's Education Press:
1 Swallow (Author: Zheng Zhenduo)
A bright black feather, a pair of handsome and light wings and a scissors-like tail make up a lively and smart swallow.
It only rained in Mao Mao a few times. The breeze blows thousands of willow trees. Green grass, green leaves and colorful flowers gather together like a market, forming a dazzling spring. Swallows fly from the south, adding a lot of vitality to spring.
The breeze is warm, swallows are leaning against the sky, chirping, and some fly from rice fields here to willow trees there in the blink of an eye; Some swept across the lake, and the tip of the tail occasionally touched the water surface, so they saw ripples all around.
Couples of swallows got tired of flying and landed on the wires. In the blue sky, there are several thin lines between the poles, which look like a staff. The stopped swallow became a note and wrote a hymn of spring.