Even the political market tends to increase in autonomy ____ the social field during the process of modernization. 29.In order to take pleasure ____ mountaineering one must maintain all the necessary skills while taking all necessary safety precautions. 30.I know the charms of my rival are too powerful for me to contend ____.31.Under these contracts, we must live up ____ a great many obligations and put up with a great many restrictions. 32.It would be fun skiing on this light powdery snow, but it would also be hard ____ his legs.

步骤 1：理解句子结构和语境
- 句子1：Even the political market tends to increase in autonomy ____ the social field during the process of modernization.
- 句子2：In order to take pleasure ____ mountaineering one must maintain all the necessary skills while taking all necessary safety precautions.
- 句子3：I know the charms of my rival are too powerful for me to contend ____.
- 句子4：Under these contracts, we must live up ____ a great many obligations and put up with a great many restrictions.
- 句子5：It would be fun skiing on this light powdery snow, but it would also be hard ____ his legs.

步骤 2：选择合适的介词或短语
- 句子1：需要一个介词或短语来表示“相对于”或“比较于”，因此选择 "relative to" 或 "compared to"。
- 句子2：需要一个介词来表示“在...中”，因此选择 "in"。
- 句子3：需要一个介词来表示“对抗”，因此选择 "against"。
- 句子4：需要一个介词来表示“履行”，因此选择 "to"。
- 句子5：需要一个介词来表示“对...来说”，因此选择 "on"。