appear on的用法和樣例：
例句
- Buds appear on the trees in spring.
春天樹木發芽了。 - The first down was beginning to appear on the young boy's face.
那小男孩的臉上漸漸長出了汗毛。 - A rash has appeared on his body.
他身上出現了丘疹。 - The audience cheered en masse the moment they saw the famous singer appear on the stage.
觀眾們看見這位著名歌唱家出現在舞台上時，立即齊聲歡呼起來。 - You know you've arrived when you're asked to appear on TV.
邀請你在電視上亮相的時候，你就知道你已經名聲在外了。
