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- Holdridge』s toad, found only in Costa Rica, was declared extinct. 只有在哥斯大黎加才能發現的霍爾德里奇蟾蜍,已被宣布滅絕。
- They spend the winter(s) in a warmer climate. 他們在氣候較暖的地方過冬。
- A hummingbird picks up more than nectar at a flower in Costa Rica's Monteverde Cloud Forest Preserve. 一隻蜂鳥吸進比較多的花蜜，花卉在哥斯大黎加的蒙特沃爾德雲霧森林保存。
- Most plural nouns in English end in "s". 英語的複數名詞多以「s」結尾。
- The sweater had shrunk after repeated washing(s). 這件套頭毛衣洗過多次已縮水了。
- Some old folk(s) have peculiar tastes. 有些老人有特殊的愛好。
- Answer the following question(s). 回答下列問題。
- Most plural nouns in English end in s'. 英語的複數名詞多以s結尾。
- The drug affects one's power(s) of concentration. 這種葯影響人精神不能集中。
- Here are the designs. Which one(s) do you prefer? 這就是那些圖樣.;你喜歡哪一個[些]?
- Which journal(s) do you subscribe to? 你訂閱哪一種雜誌?
- They include Chile, Costa Rica and Panama. 其中包括智利、哥斯大黎加和巴拿馬。
- The novel had an enormous vogue in the 1930's. 這本小說在三十年代曾廣為流傳。
- He earned four A's in the final examinations. 他期末考試四門功課得優。
- The Beatles were the pop idols of the 60's. 披頭士樂隊是六十年代人們崇拜的偶像。
- He returned to the fold at his 80's. 他在八十高齡又恢復原來的宗教信仰。
- Por la costa septentrional hay muchos acantilados. 在北部岸邊有許多懸崖峭壁。
- In Costa Rica, it often rains during the winter. 在哥斯大黎加，冬天期間經常下雨。
- She has an amused twinkle in her eye(s). 她高興得雙目熠熠發亮。
- Did you receive the mail by Costa Rica? 你收到哥斯大黎加來的郵件了嗎?
