您要查找的是不是：
- curb shifting sand 制止流沙
- We have planted trees as a hedge against shifting sand. 我们植树以防流沙的侵袭。
- Some measures are needed to secure the farmland against shifting sand. 需要采取措施使农田免遭流沙的侵袭。
- I always built alas on weak and shifting sand. 我在虚浮的沙地上构筑理想。
- We have planted tree as a hedge against shift sand. 我们植树以防流沙的侵袭。
- Some measures are needed to secure the farmland against shift sand. 需要采取措施使农田免遭流沙的侵袭。
- We have planted trees as a hedgeagainst shifting sand. 我们植树以防流沙的侵袭。
- We have planted trees as a hedge against shift sand. 我们植树以防流沙的侵袭。
- The wooden hull parts that we find have been buried by shifting sand or mud. 我们发现的木船船体的某些部分是埋在流沙或泥中的。
- These tree belts protect500000acres of farmland against shifting sand. 这些防护林带保护了50万英亩的农田不受流沙的侵袭。
- These tree belts protected500000acres of farmland against shifting sand. 这些防护林带保护了50万英亩农田不受流沙侵袭。
- They have made plans to hold shifting sands. 他们制订了控制流沙的计划。
- These tree belts protect 500,000 acres of farmland against shifting sand. 这些保护林带保护了50万英亩的农田不受流沙的侵袭。
- These tree belts effectively protect the farmland against shifting sand. 这些防护林带有效地保护了农田，使之免受流沙侵袭。
- The local government has taken some measures to protect the farmland against shifting sand. 当地政府已采取措施保护农田不受流沙侵袭。
- Finally, why did I call this series of comments: SHIFTING SANDS? 最后说说为什么我把这一系列看法叫作:移动的沙?
- On complex landforms, shifting sand deposited asymmetrically on the straw checkerboard barrier and has several sand deposition forms. 设立机械防沙体系的主要目的是阻滞流沙，使其沉积在体系内，减少风沙流对受保护目标的危害。
- Recent years, geologists have discovered large areas of paleo aeolian sand existed in shifting sand dune, semi fixed and fixed sandy lands in Ordos Plateau. 地质研究表明鄂尔多斯高原沙漠在史前即已存在，史籍也记载北魏时期该地区有大沙漠，“人造沙漠”的论点不能成立。
- He parked his car along the curb. 他把汽车停靠在路边。
- Every step forward requires testing the ground ahead for shifting sands. 每前进一步都可能遇到意想不到的困难。
