be committed to A. 致力于 B. 犯错 C. 承诺 D. 用于承担

The correct translation for "be committed to" is:

A. 致力于

"致力于" means to dedicate oneself to or to be committed to something.

Here’s a quick breakdown of the other options:

B. 犯错 means to make a mistake.

C. 承诺 means to promise or make a commitment, but it doesn't imply dedication or focus like "be committed to" does.

D. 用于承担 means to be used for undertaking something, which is not quite the same as being committed to it.

Let me know if you need more clarification!