sing的過去式和過去分式

Do sing along if you know the words.

要是知道歌詞,你就跟着唱吧。

I'll sing if I want to ─ there's no law against it.

我想唱就唱——誰也管不着。

There is some similarity in the way they sing.

他們的演唱風格有點像。

I can't sing that high.

我唱不了那麼高的調子。

He doesn't sing all that well.

他唱得並不特別好。