プログレッシブ和英中辞典(第4版)の解説
しろくろ【白黒】
&fRoman1;〔色〕
白黒写真
a 「black and white [monochrome] photograph
白黒テレビ
a 「black and white [B/W] TV (set)
&fRoman2;
❶〔戸惑う様子〕
パンがのどに詰まって目を白黒させた
His eyes rolled (in near panic) when the bread got caught in his throat.
その予想外の質問に彼は目を白黒させた
The unexpected question threw him off balance.
❷〔是非〕right and [or] wrong ⇒こくびゃく（黒白）
白黒をつける
get it settled once and for all