语法

ADJ against n

The 'effective' group

These adjectives indicate that something protects someone or something against harm, or that something fails to protect them.
The findings may enable researchers to develop new drugs that would be effective against tuberculosis.
The vital first step is an accurate diagnosis, because a drug that clears up one kind of headache may prove useless against another.
  • active
  • effective
  • good
  • helpful
  • ineffective
  • protective
  • useful
  • useless
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