lettuce的意思是莴苣。作为植物生菜来讲或者作为菜叶子来讲都是不可数的。作为生菜品种、种类来说是可数的。
例句
His lettuces have gone to seed.
他种的莴苣已结籽。
Thee lettuces are growing.
莴苣在生长。
My lettuces have bolted.
我种的莴苣已经结子了。
The lettuces certainly were very fine.
那些莴苣菜无疑是非常好。
水利万物而不争,
而万物莫能与之争。
