commit to doing：承諾做某事 commit to do sth：保證做某事commit to+名詞或-ing：委托,將提交,付諸,承諾，有時兩者都可以用不過意思不一樣。

be commit to do還是doing

be committed to (doing) sth 是固定短語。

be committed to 獻身于，致力于, (后接名詞或動名詞，to是介詞)

committed讀音：英[bi: k??m?t?d tu:]，美[bi k??m?t?d tu]。

例句：

1、The insane man was committed to an asylum.

那個精神失常的人被送進了精神病院。

2、The girl was committed to the care of an aunt.

這女孩被交給姨母照顧。

commit例句

The council has committed large amounts of money to housing projects.

市政會在住宅項目上投入了大量資金。

She was committed to a psychiatric hospital.

她被送進了精神病院。

She committed the instructions to memory.

她把指令記得很牢。

Both sides committed themselves to settle the dispute peacefully.

雙方承諾和平解決爭端。