1. be excused for 可以理解
Smith can be excused for his lack of interest in the course.
史密斯对这门课不感兴趣是可以理解的hR^[Po&g;o1yqs=bgL~,。

2. hinge on sth. 取决于
Mr Obama has so far been unwilling to support such measures, but his resolve may hinge on the mood of the electorate.
奥巴马迄今为止一直不愿支持这些举措，但他的决定可能还是要取决于选民的情绪6fqA#qpfZ+,0q_。

3. put on sth. 上演
Will any country ever be able to afford to put on such a spectacle?
有任何国家能像中国这样上演这样的奇景观吗？

4. play hardball with 跟……硬碰硬
The company is prepared to play hardball with the union.
公司决定跟工会硬碰硬_L3tYXjn&k%5_3~z|+G。