ad. 向后相关词组: backwards and forwards to know something backwards

back/background/backbone/backwards/forwards/toward/eastwards/westwards/northward/southwards/upwards/downwards/award/afterwards/ward
记忆：
1. back n. & adv. 背，后；向后 Don’t go back home too late. 不要回家太晚。
2. ground n. 地面；background, 背后的地面，背景 I’ll introduce the background of the story to you. 我为大家介绍一下故事的背景。
3. bone n. 骨头；backbone 背后的骨骼，脊椎 In fact our backbones are not straight. 实际上我们的脊柱不是直的。 a lazy bone, 懒骨头，懒汉
4. 表示方向的wards副词后缀：backwards adv. 向后
5. forwards adv. 向前
6. towards adv. 朝着
7. eastwards adv. 向东
8. westwards adv. 向西
9. northwards adv. 向北
10. southwards adv. 向南
11. upwards adv. 向上
12. downwards adv. 向下
13. inwards adv. 向里
14. outwards adv. 向外
15. afterwards adv. 后来
16. award a, 一，第一，award n. 向第一的，奖励 The award will be given to the first. 第一名将获奖。
另类阅读：
No matter you go northwards, southwards, eastwards or westwards, you will get the award on condition that you go forwards upwards instead of backwards or downward. Afterwards, you will find your backbone more straight against the background.