vt. 观看, 守望；监视, 注意（watch现在分词）

n the act of observing; taking a patient look

v look attentively

v follow with the eyes or the mind

v see or watch

v observe with attention

v be vigilant, be on the lookout or be careful

v observe or determine by looking

v find out, learn, or determine with certainty, usually by making an inquiry or other effort