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- The distance between the inside surfaces of the end brackets is named the 中开 or the plain shaft 中开. 在四肢的分布是：阴经分布于四肢的内侧面，阳经分布于四肢的外侧面。
- We bivouacked on the open plain. 我们在开阔的原野上露营。
- The problem is quite plain to us. 那问题我们都很明白。
- You needn't labor a point that is perfectly plain. 这点很明显，你用不着讲个没完。
- His devotion to music is plain to see. 他对音乐的挚爱是显而易见的。
- A slot for a key in the hub or shaft of a wheel. 键槽轮子的毂或轴里的键的沟槽
- Is the coastal plain good for farming? 沿岸平原适宜耕种吗？
- It's plain that he is the criminal. 很明显，他是罪犯。
- Flexibility, as in the shaft of a golf club. 弹性，韧性柔韧性，易变性，如高尔夫球棒的柄
- You needn't labour a point that is perfectly plain. 这点很明显，你用不着讲个没完。
- A policeman in plain clothes shadowed the criminal all day. 有个便衣警察整天秘密监视那个罪犯。
- He set an example of plain living. 他树立了艰苦朴素的榜样。
- To be plain with you, I know nothing about it. 坦白对你讲，我对此一无所知。
- We must keep to the style of plain living. 我们必须保持朴实生活的作风。
- The Indian of the west is a rover of the plain. 西部的印第安人在大平原上过着游牧生活。
- In rotating, the shaft splashes oil up into the bearings. 当轴旋转的时候就把油溅入轴承。
- The meaning of the sentence is very plain. 这句句子的意思十分清楚。
- Answer with a plain "yes" if you agree with me. 如果你同意我的意见，就明白地回答“是”。
- Plain clothes are appropriate for school wear. 朴素的衣服适合于上学时穿着。
- Plain dealing is praised more than practised. 光明磊落人人夸，身体力行有几人？
