adv.敏锐地;敏感地;锐利地;强烈地;
例句:
He felt keenly that the banker ought to be shaken out.
他深以为这位银行家必须排挤出去.
The stars are keenly shining.
星光辉映.
She remained keenly interested in international affairs.
她仍旧对国际事务很感兴趣。