to remain as的用法和樣例：
例句
- Oil and gas will continue to be our chief source of fuel.
石油和天然氣將繼續是燃料的主要來(lái)源。 - Pesticide inerts could be destined to remain a public mystery.
殺蟲(chóng)劑里的非有效性物質(zhì)，可能注定繼續是公開(kāi)的秘密了。 - Mother used to spin her own yarn.
母親過(guò)去一直是自己紡紗的。 - Mother's illness was always a great worry to me.
母親的病一直是我非常擔心的事。
