炫酷发明
2019-09-10
阅读（快乐英语高年级） 2019年5期
Robot Worm is a robot（机器人）. It looks like an earthworm（蚯蚓）. Its body is long and thin. It can go through（穿过） very narrow（狹窄的） places.
2019-09-10
Robot Worm is a robot（机器人）. It looks like an earthworm（蚯蚓）. Its body is long and thin. It can go through（穿过） very narrow（狹窄的） places.
