B2 helpful, useful, or good有益的,有用的,有利的
More examples
The psychiatric team decided that it would not be beneficial to keep her in hospital.
Breast-feeding is extremely beneficial to the health of newborn babies.
From our point of view, we do not see how these changes will be beneficial to the company.
Only some bacteria are harmful - many are beneficial.
Plants such as this one are known for their beneficial effects and have been used medicinally for centuries.
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