stumble over

• • 给…绊倒：

    Be carefull! Don't stumble over these stones.

    小心，别让这些碎石绊倒了。

  • 结结巴巴地说：

    The most important part of what he had to say was stumbled over, which made us neither cry nor laugh.

    他不得不讲的最重要的部分讲得结结巴巴，这把我们搞得啼笑皆非。