18. The boundary around the round ground separates us from the surroundings.

　　18. 围绕着圆形场地的边界将我们同四周隔开。

　　19. The blunder made the underground instrument undergo an undermining of the thunderbolt.

　　19. 这个失策让地下仪器经受了一次雷电的破坏。

　　20. The tilted salt filters halt alternately for altering.

　　20. 倾斜的盐过滤器交替地停下以便改造。

　　21. The wandering band abandoned her bandaged husband on Swan Island.

　　21. 流浪的乐队把她那位打着绷带的丈夫遗弃在天鹅岛上。

　　22. The manly Roman woman manager by the banner had man's manner.

　　22. 军旗旁那位有男子气概的古罗马女经理具有男子风度。

　　23. In the lane the planer saw a planet airplane under the crane.

　　23. 在巷道里,刨工看见了起重机下的行星飞机。

　　24. The wet pet in the net hasn't got on the jet plane yet.

　　24. 网中的湿宠物还没有登上喷气飞机.

　　25. After maintenance the main remains and remainders are left on the domain.

　　25. 维修之后,主要遗骸和剩余物留在了领地上.

　　26. The grandson branded the brandy randomly.

　　26. 孙子给白兰地随机地打上烙印。

　　27. The landlord's land on the highland of the mainland expanded a lot.

　　27. 地主在大陆高原上的土地扩张了很多。

　　28. Utilize the fertilizer to keep the land fertile.

　　28. 利用化肥保持土地肥沃。

　　29. The grand commander demands thousands of sandy sandwiches.

　　29. 大司令官要成千个沙色三明治。

　　30. I infer that he is indifferent to differentiating the offers in different conferences.

　　30. 我推断他对区分不同会谈中的报价漠不关心.

　　31. The maximum plus or minus the minimum makes minute difference.

　　31. 最大值加上或者减去最小值只产生极小的差异。

　　32. The witty witness withdraws his words within minutes without any reason.

　　32. 诙谐的证人在几分钟之内无故地收回了他说的话。

　　33. The cake maker shakes a naked snake with the quaking rake without sake.

　　33. 蛋糕制造者无缘无故地用抖动的耙子摇一条赤裸的蛇。

　　34. By the crook, the cook looked through a cookbook before making hooked cookies.

　　34. 在溪边，厨子在做钩形饼干之前查阅了一本食谱。