I heard the wail of a police siren. 我聽(tīng)見(jiàn)警笛的尖叫聲。
The driver must move to the fight, and stop if he hears a loud warning noise like a siren, or sees the flashing red lights of a police car or fire truck. 聽(tīng)到了警笛或看到了警車(chē)和消防車(chē)的警燈閃光,駕車(chē)者必須駛到右邊停車(chē)。