1·The fake pilot’s head is facing backward and a twig’s been driven up his nose.
那飞机跟苏联第一颗人造卫星是同时代的，里面那个假飞行员的脑袋被人拧得脸朝后，鼻孔里还被塞进了几支枯树枝。
2·The fake pilot's head is facing backward and a twig 's been driven up his nose.
那飞机跟苏联第一颗人造卫星是同时代的，里面那个假飞行员的脑袋被人拧得脸朝后，鼻孔里还被塞进了几支枯树枝。
3·The little girl had begun to get antsy facing backward, and it was clear to her mother that it was time.
这个可爱的小姑娘就开始焦躁的面向后面，现在确实是让她的妈妈清楚的时候了。
4·On this day, Morrie says that he has an exercise for us to try. We are to stand, facing away from our classmates, and fall backward, relying on another student to catch us.
一天，莫里老师说要让我们进行一次测验：我们背对着同学，站着，然后向后倒，依赖别的同学来接住我们。
5·Place the tie around your neck with the inside of your tie, the side with the label, facing OUTWARD, i. e. backward.
比赛地点在你脖子上的内领带，旁边的标签，面临外向，即落后。
6·In this paper, the evolution of eddy structures in the backward-facing step flow was studied by using large eddy simulation.
本文对后台阶分离流动中涡结构的演变进行了大涡模拟，研究了流场结构的变化规律。
7·Backward-facing step flow is not only a typical example of complex separated flow of fluid dynamics, but also a class of common flow phenomena in many engineering fields.
后台阶流动不仅是流体力学中复杂分离流的一个典型例子，同时也是许多工程领域中一类常见的流动现象。
8·The effect of wall roughness on gas-particle flows in a horizontal backward-facing step is studied using a phase-Doppler particle anemometer (PDPA) by measuring the mean and RMS particle velocities.
用相位多普勒颗粒测速仪（PDPA）测量了颗粒的平均与脉动速度，研究了壁面粗糙度对水平后台阶气粒两相流动的影响。
9·Going forward, can you avoid booking me the backward-facing seat?
今后你能不要再帮我订后向座了吗？
10·The re-circulation and reattachment process in backward-facing step flow is investigated using large eddy simulation (LES).
应用自主开发的大涡模拟程序数值模拟研究了后台阶流动中再附着过程的演变。