He glanced furtively at the stolid faces of the two detectives.

他偷偷地瞄了一下两名侦探面无表情的脸。

"Psst! Come over here!" one youth hissed furtively.

“Psst！过来！”一个年轻人鬼鬼祟祟地发出嘶嘶声。

Furtively the percussion-cap box came out.

那个雷管筒子偷偷出现了。

Presently she gave over skylarking, and moved irresolutely about, sighing once or twice and glancing furtively and wistfully toward Tom.

过了一会儿，她不再嬉笑了，犹豫不决地走来走去，叹了一两口气，闷闷不乐地偷偷瞥了汤姆一眼。

To peek furtively; steal a quick glance.

窥视偷窥；快速地偷看一眼。