我仔细比较了一下,这两种莴苣确实不一样,一种莴苣茎的颜色是绿中泛白,像是淡淡的粉绿色,叶子全是绿色的,但却是长长尖尖的,爷爷说:“这种白莴苣,味道苦苦的。”我又看到另一边的紫莴苣,茎和白莴苣的茎一样粗粗的,但它的叶子却是短短圆圆的,颜色也和白莴苣不同,叶子和茎上都绿中泛紫色,怪不得叫紫莴苣呢!这时爷爷说:“要是用这种叶子烧起饭来会很 I carefully compared the two lettuce is not the same, a lettuce stem color green is white, like a faint pink green, the leaves are all green, but it is long, sharp, Grandpa said : ”This white lettuce tastes bitter.“ ”I saw the purple lettuce on the other side, the stems being as crude as the lettuce stems, but the leaves were short and round, the color was also And white lettuce is different, the leaves and stems are in the green pan-purple, no wonder called purple lettuce it! At this time grandfather said: "If you use this leaf to cook will be very