to a person's taste [形][副]合乎某人口味[喜好]的
to a person's surprise = to the surprise of a person [副] 令(某人)惊讶的是
to a person's joy = to the joy of a person [副]令(某人)高兴的是
to one's relief [副] 使(某人)放心[安心]的是
to one's regret [副] 令人遗憾的是
to one's disappointment [副]令人失望的是