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- The soldiers held the fort desperately till reinforcement arrived. 战士们拼死坚守阵地，直到援军到来。
- strata reinforcement 地层加固
- We can follow the history of life through the strata. 我们可以通过这一层层的地层跟踪生命的历史。
- They represent each society stratum. 他们代表各个社会阶层。
- The older strata gradually disintegrate. 较老的岩层渐渐风化。
- This roof needs some reinforcement. 这屋顶需要加固。
- The older strata gradually disintegrated. 年代较久的地层逐渐崩解了。
- The general threw reinforcement into the battle. 将军将增援部队投入这个战役中。
- They do not constitute a separate class or stratum. 知识分子和青年学生并不是一个阶级或阶层。
- These strata, lying apparently in contact, are in fact abysmally separated. 这些表面上相触的地层实际上相隔很远。
- Position tow hook on reinforcement. 在加固物上定位拖曳钩。
- The designer chooses the layout of reinforcement. 设计者选择钢筋布置。
- To expose(rock strata)by erosion. 剥蚀因腐蚀而露出（石层）
- He hates the privileged stratum. 他憎恨特权阶层。
- Position front bumper reinforcement on vehicle. 将前保险杆加强组件置于车轮。
- They belong to the rich strata and never work. 他们属于富裕阶层，不干活。
- The reinforcement was unidirectional. 增强是单方向的。
- They represent all social strata . 他们代表各个社会阶层。
- Armies fought badly; he sent them reinforcement. 军队打仗失利，他派去援兵。
- To expose(rock strata) by erosion. 剥蚀因腐蚀而露出（石层）
