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- sodium allyl methyl sulphonate(SAMS) 甲基烯丙基磺酸钠（SAMS）
- The bis(S)-Naproxen methyl ester is(+)-enantiomer. 对其代谢过程作了初步探讨。
- carboxyl methyl sulphone 羧甲基砜
- Keywords R ） and （ S ） methyl nonanol;sex attractant;N acylbornane sultam;asymmetric alkylation; 和（S）-甲基-壬醇;性引诱信息素;莰烷磺内酰胺;不对称烷基化反应;
- 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。
