重点讲解：
1. call on sb. to do sth.
要求；呼吁；号召；
eg. I call on banks to live up to their responsibility in this regard.
我呼吁银行在此事上承担起自己的责任K[t_dKVm2#TguwZ。
eg. We call on interested parties to meet in september.
我们呼吁相关各方于9月份召开会议a3s7)#|@C0!vh=8a%q。
2. take the lead
引导；带头；做榜样；
eg. She volunteered to take the lead in carrying out the assignment.
她主动带头执行这项任务VlrMN3Db6iCNezE4d=。
eg. They took the lead in conducting the experiments.
他们带头做试验4z+t_jj8=#。
3. abide by
遵守，遵照（法规、约定等）；
eg. Having made our decision,we must abide by it.
做出决定之后，我们就得遵守1fKxc(x|HoP&~oB9。
eg. He promises to abide by the decision of the court.
他答应遵守法院的裁决X^V0zp8ei)_y。
4. take place
（尤指在控制或组织下）发生，进行，举行；
eg. The official opening of the store will take place next week.
这家店下周正式开张j3Dd#14LQc7;Ms7Z5_i。
eg. The story took place in a serene summer night.
故事发生在一个宁静的夏夜ypSbXtRXJQ-jYIeU^。
5. one-off
一次性的；
eg. One-off factors also flattered the figures.
一次性因素也美化了这个增长数据DR_3co#CLTcPvFCA]+Nb。
eg. But some analysts worry that this one-off restructuring may be almost complete.
但是，一些分析人士担心这个一次性的重建很可能结束了UWv15ptz;k@rWD2VVk。