如常的英文：
as usual
adj. 通常的，寻常的；惯例的
n. 惯常的事物；常喝的饮料
Usually y is a function in math.
X is not a function in math.
Used as the usual style for a baron.
男爵用作男爵的常用称呼。
Mothers are usually gentle with their babies.
母亲对自己的婴儿总是很温柔。
Men usually have deep voices.
男人的嗓音一般深沉。
He usually fares sumptuously.
他平常吃得很丰富。