They feel I need to bulk up, and to improve my upper body strength.

他们觉得我需要变粗壮些，并增强上身的力量。

《柯林斯英汉双解大词典》

Various physical changes are possible, including increased body fat; reduced muscle bulk, strength and endurance; and decreased bone density.

体格也可能发生各种变化，如身体变胖、肌肉减少、力量和耐力减弱骨骼密度降低。

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She pointed to Hareton, the other individual, who had gained nothing but increased bulk and strength by the addition of two years to his age: he seemed as awkward and rough as ever.

她指着哈里顿，这就是另一个人，他长了两岁什么也没改，就是粗壮些，更有力气些：他跟从前一样拙笨和粗鲁。

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"Their bulk and strength over the course of the game just really got us in the second half when we got ourselves in a situation where we couldn't make shots, " Northwestern State coach Mike McConathy said.

NPR: Florida Beats Northwestern St 79-47 In NCAA Opener

The bulk of the strength was in the output and new order index.

FORBES: Connect

JMP's candidate, Faisal bin Shamlan, is a liberal-leaning southerner, the bulk of its strength comes from the Islah or Reform Party.

ECONOMIST: The big surprise is that this was a real live election