There are no preferred colors or combinations of colors.
(2)line of business 行业, 业务范围
May I know whatline of business you handle?
(3)put sb. off 推迟，推延;阻止，劝阻
Don'tput me off when I'm trying to concentrate.
(4)refer to vt.涉及, 指的是, 提及, 参考, 适用于
Don'trefer to this matter again, please.
It's not as if he was very important in the companyhierarchy.
(6)take on 开始雇用;呈现;同…较量;承担，从事
He is unwilling to take on heavy responsibilities.
(7)for its own sake 为了…的利益
I believe in education for its own sake.
(8)There is no point in doing sth 做什么事都没有意义
You don't take advice so there is no point in asking for it.
(9)restrict to 限制
Membership in this club is restricted to man under 30.
(10)in the habit of 有…的习惯
He is in the habit of rising early.
(11)in line with与…一致
That isn't in line with my ideas at all.