Toothholder
齒夾; 齒座
??? 情景例句
Keep your nose to the grindstone; you'll succeed.
埋頭苦干，總有成功的一天。
She asked me which one I'd like, and I said I didn't mind.
她問我要哪一個，我說哪一個都沒有關系。[動詞時態一致，這是中國人學習英語最頭痛的一個問題。]
'It's all right,' she said, 'but isn't it upside down?'
是不錯，她說到，但你不覺得有些混亂嗎？