If you want to add arrowheads to multiple lines, select the first line, and then press and hold CTRL while you select the other lines.是什么意思_If you want to add arrowheads to multiple lines, select the first line, and then press and hold CTRL while you select the other lines.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句