1、spell trouble for为…带来更多困难；

But it notes intensifying competition from Middle Eastern carriers and others for lucrative business traffic could spell trouble for African airlines.
可是随着来自中东和其他地区的市场竞争日益激烈，非洲航空公司可能遇到新的麻烦^*.X;8S]N;z0。

2、involvement with参与；
Yale students have a long tradition of intense involvement with extracurricular activity.
耶鲁学生有热情参与课外活动的悠久传统^daG=J4j;*。