(N. Amer. informal)become angry, excited, or agitated
(北美，非正式)生氣；激動(dòng)；焦慮
don't have a cow—it's no big deal.
別著急——沒什么大不了。
(informal)for an indefinitely long time
(非正式)長時(shí)間地；沒完沒了地
those two could talk till the cows came home.
這兩個(gè)人可以沒完沒了地聊下去。
For a long time; indefinitely
長時(shí)間地；無限期地
The guests stayed till the cows came home.
客人們作長時(shí)間的逗留