surprise sb.in the act
冷不防地当场抓住了某人
capture sb.by surprise
出其不意地俘获某人
be taken by surprise
冷不防被...吓一跳,出其不意地攻击
spring a surprise on sb.
使某人大吃一惊
in surprise
惊奇地
to one's great surprise
使某人非常惊奇的是
to the surprise of
令...非常吃惊的是
surprise(sb.)into (doing sth.)
出其不意地使(某人做某事)
surprise(sth.)from [out of] (sb.)
出其不意地使(某人)说出(某事)