step up例句
The teacher called Dabao to
step up the platform.
老师叫大宝走上讲台.
He urged donors to
step up their efforts to send aid to Somalia.
他敦促各捐赠方加快速度将援助物资送往索马里。
The meeting ended with a pledge to
step up cooperation between the six states of the region.
会议以承诺加快这一地区六国间的合作而结束。