beneficial

Producing good or helpful results; advantageous.

• benefit/ˈbɛnɪfɪt/(n/v)好处；受益
• beneficiary/ˌbɛnɪˈfɪʃərɪ/(n)受益者
• beneficially/ˌbɛnɪˈfɪʃəlɪ/(adv)有益地

• beneficial effects
• mutually beneficial
• beneficial to
• prove beneficial
• highly beneficial
• beneficial arrangement

1. 1.Regular exercise has been shown to have beneficial effects on both mental and physical health.
2. 2.The partnership proved mutually beneficial — each side brought complementary skills to the collaboration.

• advantageous/ˌædvənˈteɪdʒəs/— giving an advantage
• helpful/ˈhɛlpfʊl/— of assistance
• favourable/ˈfeɪvərəbəl/— giving benefit

from Latin "beneficialis" = relating to benefit, from "beneficium" (benefit, kindness)