If you stalk a person or a wild animal, you follow them quietly in order to kill them, catch them, or observe them carefully. 悄悄跟踪
adjective [原级] 有茎的;长于茎上的
He stalked off without a word. 他一言未发,怒冲冲地走了。
verb [vt. 及物动词] 蔓延(stalk 的过去分词)
The gunmen stalked the building, looking for victims. 这些持枪歹徒凶神恶煞般地打楼里走过,寻找袭击的目标。