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- Please go down the ladder and chuck up my hat. 请下梯子把我的帽子扔上来。
- Radioactive ray is material thing. 放射线是实际的物质。
- She was badly hurt when she fell from the ladder. 她从梯子上跌下来，伤得很厉害。
- Please hand the basket up to Father on the ladder. 请把篮子递给梯子上的父亲。
- This ladder is riddled with woodworm. 这个梯子已经让蛀虫蛀了很多洞。
- Be careful not to fall off the ladder. 当心别从梯子上掉下来。
- He is too timid to get up to the top of the ladder. 他太胆小爬不上梯子的顶端。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- Have you any tights that won't ladder? 有没有不易抽丝的裤袜?
- It's considered unlucky to walk under a ladder. 从梯子下面走过被认为是不吉利的。
- Hard work is often a ladder to success. 发奋工作常是通向成功的阶梯。
- He climbed up the ladder, but soon got down. 他爬上了梯子，但不久就下来了。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- Diligence is often a ladder to success. 勤勉常常是通往成功的阶梯。
- May we have the loan of your ladder? 我们可以借用一下你的梯子吗?
- He propped the ladder against the wall. 他支起了梯子，把它靠在墙上。
- Hand the paintbrush up to Father on the ladder. 把漆刷递上去交给梯子上的父亲。
- Rest the ladder against the wall. 把梯子靠在墙上吧。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- Hard work and long hour is rungs in the ladder of success. 刻苦努力和孜孜不倦是成功的梯阶。
