sidelong
/ˈsaɪdlɒŋ/adjective & adverb
- directed to or from one side; sideways向旁边（的）; 从一边（的）; 旁边（的）; 侧面（的）：
as adj. Steve gave her a sidelong glance史蒂夫斜视了她一眼
as adv. he looked sidelong at her with a quick smile.他从侧面看着她, 莞尔一笑。
词源
late Middle English: alteration of earlier sideling, from SIDE+the adverbial suffix -ling.