最差的

• worst
• pessimal

例句

1. 我敢说，他们中最差的也曾是他母亲的骄傲。
   I dare say the worst of them was once his mother's pride and joy.
2. 起初那新来的男孩是班上成绩最差的，但他很快便追上了（其他同学）。
   At first the new boy was at the bottom of the class but he soon pulled up (with the others).