プログレッシブ和英中辞典(第4版)の解説
しんしょく【寝食】
彼とは2年間寝食を共にした
「I lived under the same roof with him [He and I lived in the same house] for two years.
寝食を忘れる
寝食を忘れて研究をした
He sacrificed all comforts and devoted himself to his research.
彼は寝食を忘れて会社の再建を図った
He poured all his energy into putting the company back on its feet.