意気込む
1
ser entusiástico sobre
1
to be enthusiastic (about);to be eager (to do);to be keen;to be intent (on);to be determined
初めから意気込みすぎると、途中で息切れするぞ。
You have to pace yourself or you'll choke halfway through.
Other forms
意気ごむ 【いきごむ】 (search-only kanji form)