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- Objective:To understand the mycoplasma s infection rate and drug resistance of childbearing age women in this area. 目的:了解本地区育龄妇女生殖道支原体感染情况及耐药性,以指导临床合理用药。
- four 'F's infection 四个“F”传染(手指、粪便、食物、苍蝇:fingers, feces, foods, flies)
- He earned four A's in the final examinations. 他期末考试四门功课得优。
- Two weeks after the final immunization, the animals were challenged with 200 T. s infective muscle larvae (ML) per mice. 末次免疫后1周，每只小鼠攻击感染200条旋毛虫感染性肌幼虫（ML），感染后5周用消化法检查ML负荷。
- It is clear to all of us that two plus two is four. 二加二等于四对我们大家都很清楚。
- He wove four plots together into a novel. 他把四条情节编成一部小说。
- We have tea at four o'clock in the afternoon. 我们在下午四点钟喝茶。
- The town boasts four swimming pools. 这座城镇以拥有四个游泳池而自豪。
- Our football team won by four goals to nil. 我们的足球队以四比零取胜。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- I was clean broke in less than four days. 不到四天我就一个钱也没有了。
- I'll look out for you at about four. 我4点钟左右找你。
- He showed us four case studies of disturbed girls. 他给我们看了4位精神失常姑娘的病历。
- My house is four miles distance from the sea. 我家离海四英里。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The leap year comes around once in four years. 每四年有一个闰年。
- The soldiers counted off from the left by four. 士兵们从左起四个一组大声报数。
- He wooed four girls before finally marrying one. 他在结婚之前曾向四个姑娘求过婚。
- Four avenues radiate from the square. 四条林荫大道从那广场向四方延伸。
- There are four verses in each poem. 每首诗有四个诗节。
