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- Four chlorination carbon 小鼠
- Methane chloride is the general name of four chlorine hydrocarbon products--hloromethane (methyl chloride), dichloromethane, trichloromethane (chloroform), and CI carbon tetrachloride. 甲烷氯化物是包括一氯甲烷（氯甲烷）、二氯甲烷、三氯甲烷（氯仿）、四氯化碳四种CI氯烃氯产品的总称。
- 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。
- Application of chlorinated carbon black to EPDM compound 氯化炭黑在EPDM胶料中的应用
- There are four verses in each poem. 每首诗有四个诗节。
- This recipe will be enough for four servings. 本食谱为四人食用分量。
