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US /ˈkɚrənt, ˈkʌr-/
・
UK /'kʌrənt/
- Uncountable Noun
- Electricity flowing through wires
- Movement of water in a river, or air in the sky
- Adjective
- Happening or being in the present time
- In general use or accepted by most people.
A2
More hurdle
US /ˈhɚdl/
・
UK /'hɜ:dl/
- Countable Noun
- Small fence a person or horse jumps over in a race
- Problem that makes it hard to achieve something
- Verb (Transitive/Intransitive)
- To run and jump over something
- To overcome a problem to achieve something
B2
More challenge
US /ˈtʃæləndʒ/
・
UK /'tʃælɪndʒ/
- Noun (Countable/Uncountable)
- An activity you wish to try that may be hard to do
- Act of formally inviting someone to compete
- Transitive Verb
- To formally invite someone to compete at something
- To question the correctness of something
A2
More integral
US /ˈɪntɪɡrəl, ɪnˈtɛɡrəl/
・
UK /ˈɪntɪgrəl/
- Adjective
- Being an essential part of something; necessary
- Being an essential part of something.
- Noun
- A function whose derivative is a given function.
B1
More Use Energy
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