lose one's reason
正気を失う
lose [keep, preserve] one's sanity
正気を失う［保つ］
lose one's self-control
自制心をなくす
lose one's sight [voice]
視覚［声］を失う
lose [save] one's sight
視力を失う［救う］
lose one's stripes
降格される
lose one's temper [cool, rag]
腹を立てる
lose one's temper with a person [over a matter]
人［事］に腹を立てる
lose one's vigor
元気をなくす
lose one's virginity
処女［童貞］を失う
lose one's way
道に迷う
lose one's way [bearings]
道に迷う，途方にくれる
lose [regain] one's wits
理性を失う［取り戻す］
lose one's zest for study
勉強の興味を失う
lose sight of the big(ger) picture
大局を見失う
lose the ability to bestow membership
会員資格を与える力を失う
lose the fight for existence
生存競争に負ける
lose the game to the opponent
相手に試合で負ける
lose the thread of a story
話の筋がわからなくなる
lose the vote
選挙権を失う
lose the war
戦争に負ける
lose the way
道に迷う
lose touch with ...
…と疎遠になる
lose track of ...
…の足跡がたどれない
lose weight
減量する
lose [shed] weight
やせる
Losers are always in the wrong.
((諺))（勝てば官軍）負ければ賊軍
Losing him is a big loss.
彼を失うのは大きな痛手だ
loss of confidence [faith]
自信［信仰心の］喪失
loss of sensibility to pain
痛みの感覚の喪失
loss of speed [earnings]
減速［減収］
lost in a jungle of rules and regulations
複雑な規定や規則に途方に暮れて
lost love
失恋
lost sales
売り上げの損失
lost time
失われた時
