1.prop up 支撑; 维持
Sam slouched back and propped his elbows up on the bench behind him.
萨姆懒懒地往后一靠，将他的两胳膊肘撑在了他背后的长凳上GvvEu-Xr|6bzI6。
2.come through 兑现; 提供
He puts his administration at risk if he doesn't come through on these promises for reform.
如果他不能兑现这些改革的承诺，他将使他的政府处于危险境地h8V4sFf_ig1tBYIpR^1。