wèi le / zhè cì / kǎo shì / tā / měi tiān / dōu / zài / lì bīng mò mǎ / sī háo / bù gǎn / sōng xiè

为了这次考试，他每天都在厉兵秣马，丝毫不敢松懈。

For this exam, he is training hard every day, not daring to slack off at all.