Once a week, a maid changes the sheets.
女仆每个星期换一次床单。
We tend to meet up for lunch once a week.
我们往往会每周共进一次午餐。
The train operates the 2,400-mile round trip once a week.
这列火车每周进行一次2400英里的往返旅行。
I do exercises for legs approximately once a week and most of my leg workouts include ballet movements and yoga stretching.
我大约每星期一次做腿部运动，而且绝大部分的腿部训练包括芭蕾舞步和瑜伽伸展运动。
He cleans his car once a week.
他每周洗一次汽车。
He comes to see us once a week.
他每周来看望我们一次。
我每周做一次有氧健身运动。
Lung cells die and are replaced about once a week.
肺细胞约每周死亡、更新一次。
I fill up the tank with gasoline about once a week.
大约每个星期我加满一箱汽油。
We play it together once a week.
我们每周一起玩一次。
They used to meet once a week.
他们过去一星期见一次面。
I usually have fast food once a week.
我通常一周吃一次快餐。
Once a week my business suit is smoothly ironed.
我的西装每周都要平整地熨一次。
I went there to practice speaking once a week last term.
上个学期，我每周去那里练习一次口语。
We talk to our teachers once a week for about ten minutes.
我们每周与老师交谈一次，约10分钟。
He runs three times every week and plays soccer once a week.
他每周跑步三次，每周踢一次足球。
Tad reads books to the children at the Green Oaks School once a week.
泰德每周给绿橡树学校的孩子们读一次书。
Once a week we buy our household materials including meat, vegetables, etc, and store them in refrigerators.
我们每周购买一次家庭用品，包括肉类、蔬菜等，并将它们储存在冰箱里。
We water the flowers once a week.
我们每周给花浇水一次。
每周读一本书。
Bobby and I enjoy a cup of coffee at least once a week now.
鲍毕和我现在每周至少喝一次咖啡。
Water the plant once a week if you are to get fruit in the autumn.
如果你想秋天收获果实就要每周给植物浇一次水。
Once a week or twice a month, it is good entertainment, if you like watching movies.
如果你喜欢看电影，一周一次或一个月两次，这是很好的娱乐方式。
A good tip for summer eating is to limit frozen treats like ice cream to no more than once a week.
一个夏季饮食的好建议是每周食用冰淇淋这样的冷冻食品不超过一次。
Taking exercise such as playing tennis in the gym at least once a week is beneficial to our health.
一周至少做一次运动，如在体育馆打网球，这对我们的健康有好处。
You should see your doctor every 2 weeks until 36 weeks, then once a week until you deliver the baby.
怀孕到36周前每隔两周要看一次医生，36周后开始必须每周都要去医生那儿检查一次，直到您分娩为止。
Nearly two thirds of us grab fast food once a week, and we get almost 25% of our daily calories from snacks.
我们中几乎三分之二的人每周吃一次快餐，而且我们每天近25%的热量来自零食。
Nearly two-thirds of us grab fast food once a week, and we get almost 25% of our daily calories from snacks.
近三分之二的人每周吃一次快餐，我们每天摄入的热量中有近25%来自零食。
To help me with that task, Mrs. Pillar volunteered to come to the hospital and later to my house once a week.
为了帮助我完成那项任务，皮勒太太自愿每周去一次医院，然后到我家来。
Yes, we work here once a week.
—是的，我们每周在这里上一次课。
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