He showed a lively interest in politics.

　　他對(duì)政治表現(xiàn)出濃厚的興趣。

　　She showed no interest in her children.

　　她流露出對(duì)自己的孩子沒(méi)有興趣。

　　They shared a common interest in botany.

　　他們都對(duì)植物學(xué)感興趣。