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使用 `#let s = (s.math.show-notes-on-second-screen)(self: s, right)` 来启用演讲提示，否则将不会显示。
使用 `#let s = (s.math.show-notes-on-second-screen)(self: s, right)` 来启用演讲提示，否则将不会显示。
使用 `#let s = (s.math.show-notes-on-second-screen)(self: s, right)` 来启用演讲提示，否则将不会显示。