1.usual的意思是“通常的,寻常的,惯常的”,指正常的、通常发生的或期望发生的事物,或描述在特定情况下经常发生、经常进行或经常使用的事物。强调“习惯性的,遵循常规的,不陌生的”。
2.usual在句中可用作定语或表语。用作定语时,其前一般加the或所有格代词,不能加a。
3.usual在特定的上下文中有时可省略后面的被修饰词。

as usual
像往常一样 as is common or has happened before
As usual he went to school last Sunday.上星期日他照常去学校了。
As usual, he is right.照例,他是对的。

用作定语
▲～+n.
The plane did not fly the usual commercial route.飞机没有沿通常的商业航线飞行。
Tea is the usual drink of Chinese people.茶是中国人的常用饮料。
The region has been the usual corridor of German attack.那地带经常是德国进攻的通道。
We'll meet at the usual time.我们还是在平常见面时间见面。
In the usual way I should refuse but on this occasion I shall agree.要在一般的情况下我会拒绝,但这种情况下我会同意的。
He was asked the usual questions by the police.警察询问他一些常规问题。
He explained the situation with his usual tact.他以他惯有的口气解释了局势。
Peter is at his usual tricks again, chatting up the girls.彼得又在玩老把戏,他正跟姑娘们搭讪。
Will you have your usual,George?乔治,你还喝你常喝的酒吗?
用作表语
▲S+be+～
Such cold weather is quite usual here in Nanjing at this time of the year.南京每年这时有这样冷的天气是常见的。
Heavy snow is usual in this part of the country.大雪在该国的这一带是常见的。
▲It is/was+～+(for sb+) to-v
Is it usual to have milk with meals?用餐时常喝牛奶吗?
It's usual to have a holiday in summer.夏天休假是惯例。
It's usual for me to sit up late at night.我熬夜已习以为常了。
It is usual for him to go to the office on foot.他惯常步行去上班。
It is usual for people to sit when they eat.人们通常都是坐着吃饭。

usual, common, universal
参见common条。
usual, accustomed
参见accustomed条。
usual, ordinary
这两个词都可表示“一般的”“通常的”。其区别是：usual是按照某类人或某个人的常规情况判断,有“遵循常规”的意味; ordinary是按照一般标准衡量和判断,进而有“平凡无奇”的意味。例如:
She wore her usual white uniform.
她穿着过去经常穿的那身白色制服。
She wore an ordinary uniform.
她穿着一身普通的制服。
usual, regular, habitual
这三个词都可表示“一般的”“通常的”。其区别是:usual可用于任何经常固定或有一定时间间隔而重复发生的事情,它既可以指群体习俗或个人习惯,也可指自然界的情况; regular则强调遵守约定俗成的规则; habitual指经常重复的动作、习惯性的行为或素质,但其议论的中心应是“人”。例如:
His pulse is not very regular.他的脉搏不很规律。
He's an habitual coffee drinker—he gets through about ten cups a day.他喝咖啡已成习惯——每天要喝10杯左右。
as usual, as a rule
参见rule条。
as usual, usually
参见usually条。

1.像往常一样,她是最后一个到的。
［误］  As usual, she arrives last.
［正］  As usual, she arrived last.
像往常一样,你迟到了。
［误］  You were late, as usual.
［正］  You're late, as usual.
［析］  as usual表示具体的某一次行为或动作时,一般不可用现在时,当表示现在的状态时,可用现在时。
2.霍尔太太像往常一样又迟到了。
［误］  Mrs. Hall came late, as usually.
［正］  Mrs. Hall came late, as usual.
［析］  as usual是固定短语,不可用as usually。
3.她习惯来得很早。
［误］  She came early as was usual for her.
［误］  She came early as was usual to her.
［正］  She came early as was usual with her.
［析］  be usual with sb 是固定短语,介词with不可改为介词to, for。
4.在中国,妇女外出工作是很平常的事。
［误］  It is very usual that women go out to work in China.
［正］  It is very usual for women to go out to work in China.
［析］  usual用作表语时,可跟动词不定式的复合式,但不可跟that从句。

［同义词］   customary, familiar, normal, ordinary
［反义词］   unique, unusual
［词源］  ＜拉丁语usualis (普通的,平常的)