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- She supplements her diet with vitamin tablets. 她服用维生素片剂以补充规定食谱中的营养。
- It's too hot to concentrate on book. 热得不能集中心思看书。
- The vitamin is fortified with iron. 这种维他命加了铁。
- 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。
- 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。
- Bella bought a bottle of fat-soluble vitamin A. 贝拉买了一瓶可溶于油脂的维他命A
- I must concentrate upon my work now. 我现在必须集中精力工作。
- His mother told him to have a vitamin pill before leaving. 他妈妈让他在走之前吃一颗维生素药丸。
- Birds concentrate (in places) where food is abundant. 鸟聚集在食物丰盛的地方。
- 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。
- We must concentrate our efforts on improving education. 我们必须致力於改进教育工作。
- vitamin concentrate [医] 浓缩维生素
- Some vitamin B and C will build up your resistance. 吃些维他命B和C能增强你的抵抗力。
- 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。
- Vitamin C is destroyed when overheated. 维生素C受热过度就会被破坏。
- 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。
