您要查找的是不是：
- It's too hot to concentrate on book. 热得不能集中心思看书。
- I must concentrate my energies on decorating today. 我今天必须集中精力搞装饰。
- I can't concentrate on my work when I'm tired. 我累了就无法集中精力工作。
- toner concentrate 色剂浓缩
- Don't put me off when I'm trying to concentrate. 我正要集中注意力呢，别打搅我。
- We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。
- She couldn't concentrate on a book very long. 她不能长时间专心读一本书。
- I must concentrate upon my work now. 我现在必须集中精力工作。
- Birds concentrate (in places) where food is abundant. 鸟聚集在食物丰盛的地方。
- Black plastic trash bags with toner powder. 黑色的塑料垃圾袋,装着调色剂粉
- She felt ill. She went to work, however, and tried to concentrate. 她病了。然而她照旧去上班，并且尽力集中精神工作。
- Tone After cleansing the skin, apply a toner. 调理 清洁完皮肤后，接下来使用调理产品。
- We must concentrate our efforts on improving education. 我们必须致力於改进教育工作。
- Thayer's rose petal toner or lavender toner. 都没有酒精。量绝对足。挺舒服的。
- Do you carry alcohol-free toner? 你们有没有卖不含酒精成分的化妆水?
- L ' Occitane .Immortelle Brightening Toner. 蜡菊亮白爽肤水.;1
- I can't concentrate with you breathing down my neck. 你这样紧紧盯著我，使我精神无法集中。
- A racking headache made him unable to concentrate on his study. 折磨人的头痛使他不能全神贯注地学习。
- Will you children shut up?! I can't concentrate on my work. 孩子们可以请你们闭嘴吗?我没法子专心工作。
- They chose to concentrate on simpler and more durable hardware. 他们选择加强更简单牢固的武器。
