043 (A) be onto sth (B) tag along

Ross be onto something 事有蹊翹 I knew she was onto something. 我就知道她在搞鬼 tag along 跟隨 We are going to tubing this weekend. Do you want to tag along? 我們這周末要去tubing，你要跟嗎? (一票人要出去時烙人用)

Ben be onto something 事有蹊翹 I guess they are onto something big. 我猜他們事有蹊翹。 tag along 跟隨 Autumn tagged along with Heidi. 黑糖跟隨著海蒂。

Heidi sentences

Kate be onto something Because he was onto something, his behavior caused this tragedy 因為他的搞鬼,他的行為造成這個悲劇 tag along He always tags along with her, but he still can't attract her 他總是跟隨她,但她依然不能吸引她