Sawe’s secret sauce: inside the lab that fuelled historic sub-two hour marathon
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Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
The visible or obvious part of a situation, which may be more complex than it seems.
To be as good as or challenge a strong competitor.
Because of its own qualities and not because of a connection with something else.
High-performance running shoes containing a carbon fiber plate to increase energy return.
The improvement of physical or mental capabilities, often in a sporting context.