偷偷地，秘密地；
1. 偷偷地：furtive 秘密的 | furtively 偷偷地 | furuncle 疔疮
2. 暗暗地：furthermoreover 且 | furthermost 最远方的 | furtively 暗暗地
3. 偷偷地; 暗中地 (副)：furtive 私下的, 隐密的, 秘密的 (形) | furtively 偷偷地; 暗中地 (副) | furtiveness 偷偷摸摸; 鬼鬼祟祟 (名)
4. 偷偷地,暗中地：oblong: 长方形,椭圆形 | furtively: 偷偷地,暗中地 | stride: 大踏步走,跨过
adv
1. in a furtive manner
e.g. the soldiers were furtively crawling through the night
Synonym: on the sly