过头: to overdo it, to overstep the limit, excessively, above one's head, overhead...
适当: suitable, appropriate...
类: kind, type, class, category, similar, like, to resemble...
及时: in time, promptly, without delay, timely...
半决赛: semifinals...
值: value, (to be) worth, to happen to, to be on duty...
开发: to exploit (a resource), to open up (for development), to develop...
钥匙: key...
交涉: to negotiate (with), to have dealings (with)...
实际: reality, practice, practical, realistic, real, actual...