Note that this does not actually draw a line; instead, you call the stroke API to draw the line.
注意,这并不实际绘制一条直线;相反,您调用 stroke API 来绘制这条直线。
Give a gentle reminder at first. If he/she still does not get the hint, then make a call and draw the line right there.
首先要温和的提醒他,如果他还不理会,那么直接告诉他这是你的底线了。
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