to feel sad or complain about something that has already happened
对已经发生的事情感到难过或抱怨 (duì yǐjīng fāshēng de shìqíng gǎndào nán guò huò bào yuàn)
"There's no point crying over spilled milk."
"为洒掉的牛奶哭泣是没有意义的" (wèi sǎ diào de niúnǎi kūqì shì méiyǒu yìyì de)
to visit someone casually without prior arrangement
to become agitated or upset because of something
to take precautions to avoid future risks
to look very proud or pleased
to make slow, consistent progress toward achieving something
to sell assets or shares quickly, often at a low price
