As gould described the events of the afternoon and early evening his voice was strained . 左尔德费力地讲述着下午和傍晚发生的事情。
We were obliged to resort to the primitive and most exhausting resource of towing the boat . 我们不得不采取最原始的也是最费力的办法拉纤。
The job of preparing data in this form is laborious, and cost a great deal of money . 以这种方式准备数据的工作是很费力的，并且要花许多钱。
Plainly, the british had not troubled to inquire into his highly sinister record . 显然，英国人还没有费力去调查一下他那非常见不得人的履历。
It was one of the most pretentious pieces of legislation ever presented to congress to that time。 这是直到当时提交国会的最费力的法案之一。
European unification was absorbing more of their energies and dedication than the elaboration of atlantic institutions . 实现欧洲联合比健全大西洋组织机构更为费力费神。
He walked home pretty easily, though not yet free from an impression of the presence and influence of his new friend . 他不很费力地走回家去，不过他的新朋友的风采和影响仍留在他脑海之中。
When this exacting task was completed, the huge woman heaved a sigh and pushed the letter toward jerusha and abner . 干完这件费力的事情之后，胖妇人喘了一口气把信推到耶鲁雅和艾布纳面前。
In the cottage i had to climb from room to room over the boxes and baby buggies and crates she had collected . 她屋里堆满了捡来的纸盒、木箱、小儿车之类的破玩意儿，我得费力地从一间屋爬进另一间屋。
We next come to the extremely arduous task of determining and eliminating the extraneous reading produced by misalignment . 下一步就要进行一项特别费力的工作，即确定和消除由于安装误差所产生的额外读数。
