I do not know why the ceiling should be expected to have that effect.

我不明白为什么应该期望天花板产生那种效果。

youdao

How do I fix "expected error" and be able to continue with this challenge?

如何解决“预期的错误”，能继续这样的挑战呢？

youdao

How do I fix "expected error" and be able to continue with this challenge?

如何解决“预期的错误”，能继续这样的挑战呢？

youdao