您要查找的是不是：
- sand system scrubber 砂系洗涤器
- Green Sand System Design and Anaysis for Improved Iron Casting Quality 粘土型砂系统设计和提高铸件质量的系统分析
- Ouch! The sand is so hot! I can burn my feet. 哎哟！沙子这么烫！会烫伤脚的。
- The sand blew into the food and made it gritty. 砂吹进食物中，里边尽是砂子。
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The children were playing in the sand pit. 孩子们在沙坑中玩耍。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- The tractor has make deep furrow in the loose sand. 曳引机在松软的沙土上留下了深深的车辙。
- The sun blazed down on the sand. 阳光强烈地晒在沙滩上。
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- His company was built on the sand. 他的公司根基不稳固。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
- The river has scour out a passage in the sand. 这条河在沙土中冲出一条水道。
- The boat grounded on a sand bank. 船只搁浅在沙洲上。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- The kid dug a tunnel in the sand. 小孩在沙堆里挖了一个地道。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
