It shall be unlawful for any person to deface, injure, knock down or remove any official traffic sign placed or erected as provided in this chapter.是什么意思_It shall be unlawful for any person to deface, injure, knock down or remove any official traffic sign placed or erected as provided in this chapter.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句