The expressional sites in young stalk are in phloem.
幼茎表达分布在韧皮部；
Smile" is one of the expressional tongues of body language."
“笑”是人体语言（态势语）中的表情语之一。
People have discussed a lot about color, color words and their expressional functions.
人们对色彩、色彩词以及它们的表情功能有过不少论述。