/ɪnˈɡeɪdʒd/
adjective
Someone who is engaged in or engaged on a particular activity is doing that thing.
When two people are engaged, they have agreed to marry each other.
adjective
interesting or pleasant in a way that attracts your attention 有趣的；令人愉快的；迷人的
an engaging smile迷人的微笑
verb
with infinitive pledge or enter into a contract to do something允诺, 约定; 签约保证：
he engaged to pay them £10,000 against a bond.他答应一旦违约将向他们支付10,000英镑。