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1·On the back slope water pressure in clay permeability of avoid by all means, time will take high moisture line, and even the water seepage scale expansion and danger.

切忌在背水坡用黏土压渗，云云会举高滋润线，乃至渗水规模扩张和险情加重。

2·The stresses in the glenoid fossa were the greatest in the back slope of the articular eminence. The regions of the greater compressive stresses of the mandible were those around the force line.

下颌骨较大压应力区位于力的作用线周围区域，较大拉应力区位于下颌支后部及下颌角附近区域。

3·Judgmental observers of this pattern might simply blame lack of willpower—and it is certainly true that willpower in prodigious quantities is needed to climb back up the slope to svelteness.

喜欢妄下结论的旁观者对于这一案例也许简单地将其归咎于为缺乏意志力——当然，攀登通往“苗条”顶峰的斜坡需要惊人的意志力。

4·While I struck it on the box, again and again, and then fumbled for a better match, gasoline vapors were flowing invisibly back down the slope toward where I'd left the can.

我一次又一次地擦火柴，擦不亮再摸索出一根新的，这样汽油的蒸汽顺着斜坡悄无声息地蔓延到汽油罐周围。

5·There are some remarkable trails that meander off into the surrounding countryside or slope back down to the beach.

从一些值得注意的山径可以漫游到四周围的农村或回到海滩的斜坡。

6·Theother evening, two sisters sat in the back yard of their Park Slope brownstoneand talked about their childhoods.

不久前的一天晚上，两姐妹坐在他们公园坡（纽约一地）宅子的后院，谈起他们的童年。

7·North Slope producers currently reinject the natural gas that comes with oil production back into the ground where it can be recovered.

目前，石油公司在开采石油时，一般将天然气重新注入地下以备将来使用。

8·Instead, I grabbed onto the back of a lorry that was chugging up the stiff slope and let it drag me to the top.

相反，我搭上了一辆正在陡坡上爬行的卡车，让它把我载上山顶。

9·Once more he followed the stiff back, the stiff and ruthless limp, up the slope and on to the starlit road .

他又一次跟着那直挺挺的背脊，走在那僵直、无情、一瘸一拐的步子后面，爬上斜坡，来到了星光照耀的大路上。

10·When they spoke again it was to discuss whether they ought to sleep on the bank or retreat back up the wooded slope.

当说话声再次响起时，是讨论应该睡在河岸上，还是应该退回树多的山坡上。