- 重点词汇
- enhancev.提高，增强;改进;
- mustmodal. 必须;一定;应该;一定要;
- preparationsn.准备工作;准备( preparation的名词复数 );配制剂;安排;准备工作;
- public healthn.公共卫生，公共卫生设施;
- prescribedadj.规定的，法定的;
- ephedrinen.麻黄硷，麻黄素;
- control over控制;
- departmentsn.部( department的名词复数 );（任何事物的）部分;（企业单位负责特定活动的、零售商店中专售某类商品的）部门;（学校、学术机构等的）系;
- 相关例句
No unit or individual without appointment shall operate ephedrine business.
未经指定的任何单位和个人,不得经营麻黄素业务.
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No other units or individuals shall engage in ephedrine export business.
其他单位和个人一律不得从事麻黄素出口业务.
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Large new souvenir shop, antique and ephemera sales on the ground floor.
新的大型礼品店, 古董店和蜉蝣销售地下.
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And the steamboats, though their reign was longer, were ephemeral craft.
汽船的时代虽然比较长些, 还是一种朝不保夕的工具.
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These paintings are in some ways a reminder that earthly pleasures are ephemeral.
这些画在某种意义上提醒人们世俗的享乐是短暂的。
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The steamboats, though their reign was longer, were ephemeral craft.
汽船的时代虽然比较长, 仍是一种难保长久的水上工具.
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The old universal truths lacking which any story is ephemeral and doomed. ( William Faulkner ).
“没有了古老而普遍的真理,任何故事都短暂并且注定要失败的” ( 威廉·福克纳 ).
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是准噶尔盆地中常见的三种十字花科早春短命植物.
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那圣洁的孩子在乏味的云层和倏忽变幻的浮光掠影中嬉戏微笑.
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