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常见例句

After being taken back 200 years, we were suddenly returned to the present day.
我们刚才还处在200年前的历史场景之中，一下子又回到了现在。
She smokes 20 (cigarettes) a day.
她一天抽20支(香烟).
In a day, a doctor may write (out) 30 prescriptions for patients.
一个医生一天可能要给病人开出30张处方。
He makes nothing of walking 20 miles in a day.
一天走20英里，他不以为是难事。