It doesn't mean you've gained weight, it simply means that you've added something to your body (something that will be eliminated through digestion over the next several hours).

这并不意味着你变胖了，这只是说明你的身体增加一些东西(一些在接下来的几个小时内会消化掉的东西)。

youdao

Salvation was to be gained through physical perfection or kaya sadhana, possible only through perfect understanding of the body and its functions.

通过身体的完善，或者是卡瓦成就法，很可能只是通过对身体和它的功能完全地了解，便可得到拯救。

youdao

The animal kingdom gained a new record holder after scientists declared that a species of cricket has the largest known testes of any creature relative to its body mass.

动物王国的新记录创造者诞生：科学家宣布，一种蟋蟀拥有相对于体重的世界最大睾丸。

youdao

Rashid claimed his first England wicket when Terrence Ward was adjudged to have gained an inside edge as the ball popped up to wicketkeeper Prior off his body.

BBC: Panesar shines as England stroll

The Supreme Court heard a case last week that could add new limitations on class actions, potentially adding to a trend that has gained momentum within the judicial body in recent years.

FORBES: Supreme Court Could Further Curtail Class Actions