我不确定您要尝试执行的操作，这可能会或可能不会很好地推广.

I'm not entirely sure what you're trying to do so this may or may not generalise well.

也就是说，一种可能性是将annotate与coord_cartesian(clip = "off")一起使用以允许绘图区域之外的文本.

That said, one possibility is to use annotate with coord_cartesian(clip = "off") to allow text outside the plot area.

ggplot(mtcars, aes(mpg, cyl, color = vs)) +
    geom_line() +
    annotate("text", x = 12.5, y = 3.5, label = "Arbitrary text") +
    coord_cartesian(ylim = c(4, 8), clip = "off")