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- Each rung in DNA's spiral ladder is actually formed by a pair of its chemical letters-adenine (A), thymine (T), guanine (G), and cytosine (C). 螺旋梯上的每一个梯级实际上是由两个字母组成的。DNA结构中的四个化学字母分别为：腺嘌呤(A)、胸腺嘧啶(T)、鸟嘌呤(G)及胞嘧啶(C)。
- This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100';s spiral arms. 这对于从M100的旋臂中分辨出暗藏的造父变星有着莫大价值。
- The dryer shaft is welded with several sets of multi-layer non-concentric seamless tubes, each of which is comprised of multiple seamless tubes having different sizes bent in Archimede’s spiral. 干燥机轴焊有多套，多层不同心无缝管，每套有多根大小不同弯成阿基米德螺旋线形无缝管组成。
- NUMERICAL SIMULATION OF COMET HALE-BOPP'S SPIRAL JET STRUCTURE 海尔-波普彗星旋喷流结构的数值模拟
- They spend the winter(s) in a warmer climate. 他们在气候较暖的地方过冬。
- Most plural nouns in English end in "s". 英语的复数名词多以“s”结尾。
- The sweater had shrunk after repeated washing(s). 这件套头毛衣洗过多次已缩水了。
- Some old folk(s) have peculiar tastes. 有些老人有特殊的爱好。
- Answer the following question(s). 回答下列问题。
- Most plural nouns in English end in s'. 英语的复数名词多以s结尾。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- Here are the designs. Which one(s) do you prefer? 这就是那些图样.;你喜欢哪一个[些]?
- Which journal(s) do you subscribe to? 你订阅哪一种杂志?
- The novel had an enormous vogue in the 1930's. 这本小说在三十年代曾广为流传。
- He earned four A's in the final examinations. 他期末考试四门功课得优。
- The Beatles were the pop idols of the 60's. 披头士乐队是六十年代人们崇拜的偶像。
- He returned to the fold at his 80's. 他在八十高龄又恢复原来的宗教信仰。
- She has an amused twinkle in her eye(s). 她高兴得双目熠熠发亮。
- Driving with worn tread(s) can be dangerous. 轮胎胎面磨损的汽车开著有危险。
- My expostulation(s) had no effect. 我提出的劝告毫无作用。
