They murdered fifteen boys in a killing spree (=an occasion when someone murders many people in a short period of time) across southern California.
他们在加利福尼亚南部各地一时间杀害了15名男孩。
2make a killinginformalPROFIT to make a lot of money in a short time 发横财,获暴利
He made a killing on the stock exchange.
他在股市赚了大钱。
Examples from the Corpus
make a killing• After making a killing on other Trumpcasinobonds, he sold them recently.• Buy speculativestuff and you can make a killing or get killed, depending which way the windblows.• They're a safeinvestment, but in love you can make a killingovernight.• But an on-the-ball whiskyshop could make a killing with its special EC-label maltScotch at £27.70 a bottle.• Boy, if you only knew what corporateinsiders knew, you could make a killing on a stock, right?• He had made a killing on the stock exchange that morning.• Alexander recalledmaking a killing in the stock market in the '80s.• Vito's a debonairmiddle-aged New Yorker, who's made a killing in advertising.• They should make a killing today.• Not strongly enough to kill me for that, but certainly strongly enough to make killing me satisfying in that respect also.