It's ___(需要) for us to drink 2L of water every day.

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It's ___(需要) for us to drink 2L of water every day.

It's ___(需要) for us to drink 2L of water every day.
It's ___(需要) for us to drink 2L of water every day.

It's ___(需要) for us to drink 2L of water every day.
necessary

mecessary

necessary