Build endurance.
Meaning: This means to make yourself able to do something difficult or tiring for a long time. It's like saying, Make yourself able to do something difficult or tiring for a long time.
Choice of Words: Build means to create or develop something. Endurance means the ability to continue doing something difficult or tiring for a long time. When you put them together, "Build endurance" means to create or develop the ability to continue doing something difficult or tiring for a long time.
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Related Expressions