to be in direct competition or disagreement
直接競争または意見の不一致にある (chokusetsu kyōsō mata wa iken no fuchīchi ni aru)
"The two leaders went head to head in the debate."
"二人のリーダーは討論でヘッド・トゥ・ヘッドに進みました。" (Futari no rīdā wa tōron de **head to head** ni susumimashita.)
to remain valuable or successful for a long period of time
to return to a place
to understand something that is complicated or unclear
to attract a lot of attention or make a strong impression
to secure or restrict access to something completely
to change your way of thinking completely