例句與造句

1. This signal is also sometimes used by other motorists to signal truck drivers.
2. It is being built as a smart city, with full WiFi coverage and its own fiber optic cables, LED streetlights with sensors, camera-equipped lampposts, and smart trash cans that will signal trucks through the Internet when they need to be emptied.
3. It's difficult to find signal truck in a sentence. 用signal truck造句挺難的