Words
run [rʌn]
动词，意为“跑”。 eg：The boy is running in the playground. 小练习：单项选择：（ ）He _____ after the thief along the street last night. A. ran B.runs 拓展：（1）run after sb.为固定词组，意为“追赶某人”。 eg：The cat is running the mouse. 猫正在追赶老鼠。
