What does "bulk up" mean?

To gain muscle mass To build muscle through exercise and diet.

How do you use "bulk up" in a sentence?

He's been bulking up at the gym. Athletes bulk up during off-season. She bulked up for the role.

Phrasal Verb BritishAmericanAustralian ★★★★☆ Common Neutral

Meaning: To gain muscle mass

增肌，练壮

Ganar masa muscular, ponerse cachas

筋肉をつける、体を大きくする

근육을 키우다, 몸을 불리다

To build muscle through exercise and diet.

通过锻炼和饮食增加肌肉量。

Desarrollar músculo a través del ejercicio y la dieta.

運動と食事で筋肉量を増やすこと。

운동과 식단을 통해 근육량을 늘리다.

Base verb: bulk

Particle: up

Separable: No — the verb and particle stay together

He's been bulking up at the gym.
他一直在健身房增肌
Ha estado ganando masa muscular en el gimnasio
彼はジムで筋肉をつけている
그는 헬스장에서 근육을 키우고 있다.
Athletes bulk up during off-season.
运动员在休赛期增肌
Los atletas ganan masa muscular en temporada baja
選手はオフシーズンに体を大きくする
선수들은 비시즌에 몸을 불린다.
She bulked up for the role.
她为了这个角色练壮了
Se puso en forma para el papel
彼女は役作りのために体を鍛えた
그녀는 배역을 위해 몸을 만들었다.

Context: bodybuilding, fitness

Tone: active

From increasing bulk or size.

Era: Modern

Generation: Young adults

Social background: Universal