Dole, after trying to solve a mathematical problem, but also try the math problem 2 solution, after several days of projections, he has finally solved the two math problems.
多尔在试着解一道数学题之后，又试着解第2道数学题，经过几天的推算，他终于解开了2道数学题。
But the tests used there, such as examining the shape of cells and staining for various proteins, are sometimes inconclusive. The lab tests also take several days.
但是这类检测方法在进行细胞检查和各种蛋白的着色上往往力不从心，而且时间也会持续好几天。
The disastrous rainfall not only ruined the early rice, but also drowned the middle rice seedlings, which were just planted several days ago.
灾难性的降水不仅破坏了早稻，而且淹没了中稻的籽苗，这些籽苗几天前才播种的。
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