您要查找的是不是：
- He put it where it is concealed from view. 他把它放到看不见的地方。
- Machine guns opened up from a concealed position. 机关枪从隐蔽的阵地开始射击。
- He asked for an extension of his visa. 他申请延长签证有效期。
- He concealed himself behind the tree. 他藏在树后。
- You should not conceal yourself from your teacher. 你不应该躲避你的老师。
- She concealed her disappointment from her mother. 她对母亲隐瞒了自己的失望。
- He built an extension onto his house. 他给自己的住宅扩建了一部分。
- He concealed his key under the doormat. 他将钥匙藏在门前擦鞋垫下。
- Extension of the injured arm was painful. 把受伤的胳膊伸展开是很疼的。
- He concealed his real motives from me. 他对我隐瞒了他的真实动机。
- By extension, an array of any number of dimensions. 广义来说，矩阵可以是任意维数的数组。
- A sudden attack made from a concealed position. 伏击从隐蔽地点进行的突然袭击
- We built an extension to our house. 我们扩建了我家的房屋。
- She tried to conceal what she had done to them. 她试图隐瞒对他们所做的事。
- Data whose meaning is concealed from unauthorized users. 对于非授权用户其意义是隐蔽的数据。
- Not carrying concealed weapons or drugs. 没有携带隐藏起来的武器或毒品的
- Extension of validity of bid shall normally not be requested. 一般来说不应要求延长投标有效期限。
- The state of being concealed; secrecy. 保密隐藏的状况; 隐匿
- An outward show of confidence concealed his nervousness. 他表现出很有信心的样子以掩盖内心的紧张。
- She has an extension in the kitchen and in the bedroom. 她的厨房和卧室都有电话分机。
