to try hard not to show or express an emotion, especially sadness or tears
感情、特に悲しみや涙を見せたり表現したりしないように努力する (Kanjou, toku ni kanashimi ya namida wo misetari hyougen shitari shinai you ni doryoku suru)
"He choked back his tears during the farewell speech."
"彼は別れのスピーチで涙をチョーク バックした。" (Kare wa wakare no supīchi de namida o **choke back** shita.)
to succeed or be judged positively in something
to start discussing trade terms formally
to develop good habits and control over one’s actions
to reply to someone’s comment online
to monitor someone's activities or progress
to relax and let go of tension or emotional stress
