lettuce /ˈletis/ n.［c］& ［u］莴苣，生菜：a head of lettuce一头生菜；lettuce leaves生菜叶All she had was a tomato and some lettuce.她只吃了一个西红柿和一些生菜。Get some lettuce and tomatoes so I can make a salad.买些莴苣和西红柿，我好做色拉。