| 31. | land sb.a K.O. blow on the upper jaw |
| 对着某人上颚一拳把他打倒在地
|
| 32. | the upper and middle ranks of society |
| 社会中上阶层
|
| 33. | the upper [middle, lower] region of the sea |
| 海水的上［中、下］层
|
| 34. | the upper regions |
| 天；天国
|
| 35. | the upper [middle, lower] reaches of a river |
| 河的上[中、下]游
|
| 36. | the upper reaches of society |
| 上流社会
|
| 37. | a small community living on the upper reaches of the Amazon |
| 居住在亚马逊河上游的一个小社区
|
| 38. | the lower [ upper ] limbs |
| 下[上]枝
|
| 39. | the lower [ upper ] lip |
| 下[ 上] 唇
|
| 40. | carry [have, keep] a stiff upper lip |
| 不沮丧，在困难、危险等面前挺起胸来
|