My friend is obsessed with going to the gym and has really bulked up her arms.

我朋友迷上了去健身房，她确实把胳膊练得粗壮了。

《柯林斯英汉双解大词典》

Mir has since bulked up to about 265 pounds, erasing any size differences between the two fighters.

而在那之后，Mir开始增重至如今的265磅，现在两人之间已经不存在体型上的差别。

youdao

On average, birds in central California have bulked up between two and five per cent in body weight and wingspan.

平均而言，加利福尼亚州中部的鸟类体重和翼展都增加了2%—5%不等。

youdao

Last week, New York City bulked up its program, partnering with private sponsors.

FORBES: The Bike Sharing Renaissance

Some of the products sold as honey have been bulked up by sugar, water and corn syrup.

FORBES: Today's Mystery: Europe's Bees Disappear Yet Honey Increases

Laced with buttermilk, bulked up with buckwheat, studded with berries I've tried them all.

WSJ: Waffle Recipes: Off the Grid | Breakfast 2.0