first appear

例句 (10)

• Modern contact lenses first appeared in the 1940s.现代隐形眼镜首次出现在20世纪40年代。
• The symptoms of the disease usually first appear after a week.这种疾病的症状通常在一周后最先出现。
• Dinosaurs first appeared during the Triassic period.恐龙首次出现在三叠纪时期。
• When did this particular fashion trend first appear?这个特定的时尚潮流是何时首次出现的？
• The crocuses are the flowers that first appear in our garden each spring.番红花是每年春天我们花园里最先出现的花。
• This character first appeared in a short story before becoming a movie hero.这个角色在成为电影英雄之前，首次出现在一部短篇小说中。
• Cracks in the wall first appeared following the earthquake.地震过后，墙上的裂缝首次出现。
• The concept of zero first appeared in ancient Indian mathematics.零的概念首次出现在古印度数学中。
• She remembers where she was when the news first appeared on television.她还记得当这个新闻首次出现在电视上时她在哪里。
• Concerns about the new policy first appeared during internal discussions.对新政策的担忧首次出现于内部讨论期间。