36.business 用法:on business表示出差;in/out of business表示开/关张。
特殊注意:表示商业时不可数,表示具体的行业时可数。
37.busy 用法:be busy with/doing.
特殊注意:不能说My work is busy. 应说I am busy with my work.
38.buy 用法:buy sth. for 5 dollars; buy sth. for sb.
特殊注意:点动词,不能表示买的时间长短。
w*w*w*k*s*5*u*c*o*m
39.but 用法:not…but.. but for next but one , have no choice bu to do sth., all but 几乎,差一点
特殊注意:do nothing but do sth. nothing前有do,后面的to要省略。Not only… but also…引导的并列句,前倒后不倒。cannot help/ choose but do sth. 不能不,只能
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