勞力

labor / able-bodied worker / laborer / work force

to toil / labor / laborer / to put sb to trouble (of doing sth) / meritorious deed / to console (Taiwan pr. [lao4] for this sense)

power / force / strength / ability / strenuously

to tax one's mind and body / demanding (work) / dedicated (worker) / hard-working

Rolex (Swiss wristwatch brand)