新概念英語第一冊習(xí)慣用語大全：Lesson 125-126

Lesson 125～126
    look out 小心，當(dāng)心，注意，留神
    look out 當(dāng)心，注意，留神(watch out, be careful, beware)
    例句：Look out! There's a big dog over there．
    當(dāng)心，那邊有只大狗。