Contravalid
反有效的, 无效的
🗣️ 情景例句
I can't eat another bite.
我一口也吃不下去了！
Our policy is not to grant exclusivity.
我们的方针是不授与专卖权。
They will be able, as it were, to see and hear us in action.
他们能够身临其境般地观看我们做事，倾听我们讲话。