Help yourself
随便───casual;用───use
The guests wore casual clothes.───客人们穿着便服.
Her confession was simply tantamount to a casual explanation.───她的自白简直等于一篇即席说明.
Among her friends, casual dress and a relaxed manner are the rule.───她的朋友一般都衣着休闲, 举止也轻松随意.
The painting depicted a hall so lifelike that a casual observer might believe himself to be looking through an open door.───这幅画描绘的厅堂如此逼真，若不细看，还真以为是从一扇开着的门往里看呢。
We are only casual acquaintances.───我们只是泛泛之交.
Every movement, no matter how casual and spontaneous, needs to be worked out to the last detail.───对每一个动作，无论它显得多么随意和无意识，都不能放过一丝细节。
A sharp dresser, Wyatt is never seen in casual clothes.───怀亚特衣着入时，从未有人见过他穿便装。
The boy was cheeky and casual.───那个小男孩有点放肆，随随便便的。
To the casual observer, the system appears confusing.
The boy was cheeky and casual.
They have a casual attitude towards safety .
She usually wears smart/casual clothes.
It's difficult for me to be casual about anything.