摘要：on business 出差My father went to Shanghai on business last week.爸爸上周去上海出差了My father was on business in Shanghai this week.我爸爸这周去上海出
1.on business 出差
My father went to Shanghai on business last week.
爸爸上周去上海出差了
My father was on business in Shanghai this week.
我爸爸这周去上海出差了。
2.on duty 值日/值班
The nurse is on duty tonight.
今晚是这位护士值班
I'm on duty today and need to clean the classroom.
我今天值日，需要打扫教室。
3.on foot 步行
We go to school on foot every day.
我们每天步行上学
I go to school on foot every day.
我每天步行上学。
4.on fire 着火
Look! That building is on fire!
看！那栋楼着火了！
The old house was on fire last night.
那栋老房子昨晚着火了。
5.on hand 在手边
Keep your dictionary on hand during the test.
考试时把字典放在手边
I always keep a dictionary on hand when studying English.
我学英语时总会在手边放一本字典。
来源：芳芳课堂
