Definition: happening slowly over a period of time Level: B2
向可再生能源的过渡是一个渐进的过程。
The transition to renewable energy is a ___gradual process.
我注意到我的英语口语能力在逐步提高。
I've noticed a ___gradual improvement in my English speaking skills.
整个星期，气温在逐渐上升。
There was a ___gradual rise in temperatures throughout the week.
