劳苦功高
辛辛苦苦立下了很大的功劳，例为了向国庆献礼，这个水利工程的工作人员夜以继日地工作，总算如期完成任务，真可谓劳苦功高。 In order to present a gift to the National Day celebrations，the workers of the water conservation project laboured night and day to complete their task on time．Their great achievemennt isdue entirely to their hard work． |