
如果是be committed to(致力于),那么to 是介词,后面接doing。比如The President is committed to reforming the health care. (总统承诺进行医疗改革) 如果是commit to则是不定式。

如果是be committed to(致力于),那么to 是介词,后面接doing。比如The President is committed to reforming the health care. (总统承诺进行医疗改革) 如果是commit to则是不定式。