您要查找的是不是：
- It takes a lot of labor to build a railway. 修筑一条铁路要花费许多劳动力。
- There is a clear division of labor in ants. 蚂蚁间有明确的分工。
- These robots will save us a lot of labor. 这些机器人可以节省我们大量劳工。
- I'm a federal employee. I work for the Department of Labor. 我是联邦政府的雇员，我在劳工部工作。
- ChS can promote the differentiation of HL60 cell. ChS能够促进HL60细胞分化。
- Leaf had no differentiation of palisade and spongy. 叶肉无栅栏组织和海绵组织的分化。
- I'm a strong believer in the dignity of labor. 我深信劳动的尊严。
- His hard hands and sinewy sunburnt limbs told of labor and endurance. 他粗糙的双手，被太阳哂得发黑的健壮四肢，均表明他十分辛勤，非常耐劳。
- Prosperity is the fruit of labor. 繁荣是劳动的果实。
- We have defended the fruits of labor. 我们保卫了我们的胜利果实。
- Fig 2. Differentiation of young shoots from transformed callus. 图2：从基因枪轰击过的愈伤组织分化出大量的小苗。
- I work for the Department of Labor. 我在劳动部工作。
- Toxin has effect on growth and differentiation of calli. 毒素对愈伤组织的生长与分化有显著影响。
- To observe the norms of Labor Health and Safety. 遵循劳工健康和安全守则。
- We should pay attention to the differentiation of synonym. 我们应注意对同义词的辨析。
- The cost of labor is very low in China. 中国人工成本很低。
- The second stage of labor usually lasts 4 hours. 第二产程通常持续4小时。
- The first stage of labor usually lasts ca. 2 hours. 第一产程通常持续约2小时。
- You are now in the preliminary stage of labor. 现在是临产的前驱期。
- In 1888, Congress created the Department of Labor. 1888年，国会成立了劳工部。
