sidelong
adjective [ before noun ], adverb uk/ˈsaɪd.lɒŋ/ us/ˈsaɪd.lɑːŋ/
斜眼看的（地），睨视的（地）
used to refer to a short look at someone or something, moving your eyes to the side, and not looking directly
He gave her a sidelong glance. 他斜着眼睛瞥了她一眼。
He glanced at her sidelong and smiled. 他偷着斜扫了她一眼后笑了。