gradual /ˈgræʤəwəl/ adjective Learner's definition of GRADUAL
[more gradual; most gradual]
1
: moving or changing in small amounts : happening in a slow way over a long period of time逐渐的；渐进的
— gradually
adverb -
The population gradually increased.人口渐渐增加了。
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The temperature changed gradually.温度慢慢变化。
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The cat moved gradually forward.那只猫慢慢地向前挪动。