work once and work twice 翻译

work once and work twice 翻译 Work work and more They did not praise him slightiy是什么意思?还有,Work once and work twice.The elevator girl reads between passengers. They don't have to finish the work at once.(改成同意句)They _______ _______ to finish work at once. work work work work work work work work work work work work work ___professor as he was,he couldn' t work out the problem at once.用什么冠词