I would like

a cut

a trim

make my hair thinner（打薄）

a wash and cut.

a wash, cut, and dry .

to get a perm.

to have my hair straightened.

to have my hair dyed or coloured.

幾個方位詞：

in the back 后面

in the front 前面

on the sides 兩邊

on the TOP 頭頂

綜合運用：

理發師: How would you like your haircut, sir？ 你想如何剪？

客人: Just a trim, and cut the sides fairly short, but not so much at the back. 稍微修一下。兩邊多剪短些，后面不要剪太多。

理發師: Nothing off the TOP? 頭頂不剪嗎？

客人: Well, a little off the TOP. 哦，上面稍微剪一點。

理發師: How about the front? 前面呢？

客人: Leave the front as it is. 前面不要剪。

其他詞語

parting line 頭發分界線

setting lotion 燙發藥水

highlight 挑染

shampoo 洗發露

hair conditioner 護發素

styling gel 發膠

fringes 劉海

layers 層次

split ends 分叉的發尾

dandruff 頭皮屑