That's why women are told to eat 25 grams a fiber a day—men even more.

这就是为什么女性被要求每天要吃25克纤维素——男性甚至更多。

The average steak has 25 grams of protein.

一般的牛排含25克蛋白质。

A wet mouse has about 3 grams of water sticking to it, which is more than 10% of its body weight.

一只湿透的老鼠则约有3公克的水，附着在身上的水重量超过其体重的10%。

Since this land only holds two grams of precious metal per ton of mud, mercury is needed to pull the gold from the sludge.

于这片土每吨泥浆只含有两克贵金属，因此需要用水银从淤泥中提取黄金。

A lot of work went into producing the dye as more than 10,000 snails were needed to create just one gram of tyrian purple.

制造染料耗费许多工程，光一克的泰尔紫就需要超过一万只蜗牛。

According to Landua, the synthesis of one gram of antimatter with current technology would cost about 1,000 trillion dollars.

根据兰杜阿的说法，用目前的技术成一克反物质将耗资约一千万亿美元。

The volunteers then ate 90 grams of yoghurt a day for six weeks.

志愿者们在接下来的六周内每天饮用90克酸奶。

Listen as geochemist, Professor Rachael James, explains her idea to BBC World Service's, Discovery: For every tonne of rock that's mined, only a very tiny proportion, a couple of grams of that, is actually diamond.

化学家瑞秋·詹姆斯教授向BBC全服务节目《探索》解释她的想法，我们来听一下：对于开采的每一吨岩石，实际上只有一小部分，也就只有几克是真正的钻石。

It's recommended to limit your salt intake to less than 5 grams per day.

建议将盐的摄入量限制在每天5克以下。

He says that his belly button produces about 1.1 grams of fluff every year.

他说，他的肚脐每年会产生大约1.1克的绒毛。

Generally, though, a 140-pound person should not exceed 120 grams of protein per day, particularly because a high protein diet can strain kidney and liver function and increase risks of developing heart disease and cancer.

然而，通常情况下，一个体重 140 磅的人每天的蛋白质摄入量不应超过 120 克，特别是因为高蛋白饮食可能会对肾脏和肝脏功能造成压力，增加患心脏病和癌症的风险。

A gram of hydrogen, a gram of sodium… and a kilo of water.

一克氢，一克钠，还有一公斤水。

A 7.2 gram Laopu gold necklace with diamond studded gold pendant retails for anything from 11,230 yuan (US$1,540), much higher than if it were to be sold just based on the gold's weight.

一条7.2克的老铺黄金项链， 配以镶钻黄金吊坠，零售价在11，230元（约1，540美元）左右，远高于仅按黄金重量计算的售价。

It's 175 grams and the Frisbee golf disk is similar to playing ball golf.

大约有175克，而高尔夫飞盘与高尔夫运动类似。

So we have 250 grams of dark chocolate.

我们有250克黑巧克力。

And these micro preemies need every gram of weight they have.

因此，超级早产儿的每一克体重都很重要。

So, we have 250 grams of dark chocolate. I use 72%.

我们有250克黑巧克力。我用了72%。

So per gram, fat has more than twice the energy of protein or carbohydrates.

每克脂肪的能量要比同重量的蛋白质或碳水化物高出两倍以上。

For an average 80-kilogram individual, that's 352 grams of protein per day.

所以一个平均体重80公斤的人，每天要吃掉352克蛋白质。

Despite the beautifully designed collar, cuffs, and lappet, the whole piece only weighs 49 grams.

尽管其衣领、袖口和衣襟都设计得很漂亮，但整件衣服只有49克重。