Silvore
铜镍耐蚀合金
🗣️ 情景例句
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
Did I hear you right?
我有没有听错？
the main complicating facts of human life must remain unintelligible.
我们才能明白人类生活中主要的复杂现象。