Subject + 抹 + 去/掉 + Object
抹 (mǒ) is a verb meaning "to wipe," "to erase," or "to smear." In financial contexts, 抹去 means "to wipe out" or "to erase," such as erasing gains or losses. It can also mean to physically wipe a surface or apply something by smearing.
股市大跌,一天之内抹去了全年的涨幅。
gǔshì dà diē, yī tiān zhī nèi mǒqù le quánnián de zhǎngfú.
The stock market plunged, wiping out the entire year's gains in a single day.
她用毛巾抹掉了桌上的水渍。
tā yòng máojīn mǒdiào le zhuō shàng de shuǐzì.
She wiped the water stains off the table with a towel.
这段记忆怎么也抹不去。
zhè duàn jìyì zěnme yě mǒ bù qù.
This memory can never be erased.