It's n____ for you to bring an umbrella in rainy days.
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It''sn____foryoutobringanumbrellainrainydays.It''sn____foryoutobringanumbrellainrainydays.It''sn____for
It's n____ for you to bring an umbrella in rainy days.
It's n____ for you to bring an umbrella in rainy days.
It's n____ for you to bring an umbrella in rainy days.
necessary 必要的
necessary