例句：
He accepted her offer with alacrity.
他欣然接受了她的`建议。
She sprang to the door with alacrity.
她轻捷地一纵身向门口跳去。
She sprang to the door with alacrity.
她敏捷地跳到门口。
He accepted my invitation with alacrity.
他欣然接受我的邀请。
As you can imagine, I accepted with alacrity.
你可以想象得到，我欣然接受了。