I'm seeing a patient ─ please wait outside.
我正在給病人看病。請在外面等候。
Please wait your turn.
請等著輪到你。
Please wait a moment.; Just a moment, please.
請稍等一會兒。
Please wait on, will you? I'm just coming!
請稍等片刻好嗎？我就來！
Please wait for a moment.
請等一會兒。
Please wait a moment.
請稍候一會兒。
Please wait for me at the gate.
請在大門口等我。