1. This black substance is carbon.
    这种黑色物质是碳。

2. They maintained that ghosts had no substance.
    他们认为鬼魂不是实物.

3. The questions include: "Have you ever been a controlled substance (drug) salesman, or a sex slave or pimp?"
    其问题包括：你做过受管制药物（毒品）的推销员吗？

4. The likely next step is agreement from the Government to test pepper spray, an organic substance derived from peppers which disables an attacker if sprayed in his face.
    下一步可能的做法是政府同意试验胡椒喷雾剂，一种从胡椒中提取的有机物质。如果喷在脸上，它能使袭击者丧失行动能力。

5. Harry went on to explain that ´myrolite´ was a hard, amber-like substance which could be used to remove freckles.
    哈里便进一步解释"密诺莱特"是一种质地坚硬、状似琥珀的东西，可以用来除去雀斑。

6. An observant visitor would soon notice that it is filled with what looks like a thick, greyish substance.
    但细心的客人很快就会发现瓶里装的是一种看上去黏稠，颜色发灰的东西。

7. An observant visitor would soon notice that it is filled with what kooks like a thick, greyish substance.
    明眼的来访者很快就注意到瓶里装的是一种看上去浓厚的淡灰色的物质。

8. In his basement laboratory in London, a bacteriologist, Dr. Alexander Fleming, was searching for a substance that would kill deadly bacteria.
    当时细菌学家亚历山大·佛来明博士正在地下试验室里研制一种能够杀灭致命细菌的物质。