1·A few twentieths of a gram can be critical.
二十分之几克可能是关键的。
—— 《柯林斯英汉双解大词典》
2·Extracting information about the large-scale composition of a planet from a sample weighing a millionth of a gram was a fascinating example of scientific endeavour.
从重量为百万分之一克的样品中提取有关行星宏观组成的信息是一个极为有趣的科学尝试实例。
—— 《柯林斯英汉双解大词典》
3·Women there presented her with a gram of radium for her campaign.
那里的妇女为了支持她的活动赠送给她一克镭。
4·This longer life means that in terms of cooling per gram, sulphur in the stratosphere outdoes the lower-down stuff by about 25 to 1.
更长的生存期就意味着就每克的冷却量而言，平流层中的硫比底层的硫多约25倍。
5·If you can make 100 tons of the drug, but it costs $100,000 a gram that might not be a useful drug because nobody could afford to use it.
如果你能制造一百吨这种药物，但每克的成本是十万美元，这药可能就没什么用，因为没人买得起它。