您要查找的是不是：
- the axis distance between the top member and the bottom member 上下弦轴心距离
- They sent the enemy ship to the bottom of the sea. 他们把敌舰击沉。
- The child was sitting on the bottom stair. 那孩子正坐在楼梯最下面的一级上。
- I intend to get to the bottom of it. 这件事我打算寻根究底。
- He was always bottom of the class in maths. 他的数学成绩在班上总是垫底。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- The dregs have settled at the bottom of the bottle. 渣滓都沉到瓶底了。
- Our club is a member of the Football League. 我们的俱乐部是足球联合会的一员。
- I fell right to the bottom of the stairs. 我从楼梯上一直摔到楼梯下面。
- The police found a body at the bottom of the lake. 警方在湖底发现了一具尸体。
- He is as much a member of the orchestra as Tom. 他和汤姆同样是管弦乐队的成员。
- His bottom waggle in a funny way when he walk. 他走路时臀部扭来扭去，很可笑。
- He is a member of the Ivy League. 他是长春藤联合会的一员。
- The bottom of the boat was rusty. 船底生锈了。
- He is a member of the Labor Party. 他是一名工党党员。
- He is a member of the medical fraternity. 他在医务界工作。
- There is a pair of scissors in the bottom drawer. 最底下的抽屉里有把剪刀。
- Prices have reached rock bottom. 价格已经到了最低点。
- She is a member of the Royal College of Nursing. 她是皇家护士协会的会员。
- Every indication show market get near bottom now. 所有迹象表明，目前市场价格已跌落低谷。
