We must learn to conserve what remains.

　　我們必須學會保存那些剩余的資源。

　　I didn't remain long in the city.

　　我沒在那個城市逗留很長時間。

　　Though the sore being healed, yet a scar may remain.

　　傷口雖然痊愈, 卻可能留下傷疤。

　　The present international situation remains tense and turbulent.

　　當前的國際局勢依然緊張動蕩。

　　Most of the unearthed relics remain intact.

　　大多數(shù)出土文物仍保持完好無損。