Hehasputforwardasolutiontotheproblematonceeconomicalandpractical.他提出了一个既经济又可行的解决问题的办法。Heisthebestactoralive.他是当代最优秀的男演员。Hewantedtogetsomeonereliabletohelpinhisresearchwork.他想找一个可靠的人来帮他做研究工作。Theydiscoveredsomethingunexpectedinthe...