But the market prices are changing frequently.
但是市场价格随时都在变化。
常用商务口语
第 19 部分
📚 句中词汇解析
从本句中提取的重要词汇
n. 交易;市集;需求;交易情况，行情;
vt. 在市场上出售某物;推销;
vi. <美>去市场买东西;
💡 mark(merc-=trade)+et(名词后缀)→市场；市集；交易；出售
"to buy or sell goods on the black market"
从事黑市买卖
近义：introduce, launch, merchandise, merchandize, release, commercialise
反义：obtain, procure, purchase, secure, acquire, get
adv. 频繁地，屡次地;往往;动;动辄;
💡 frequent经常的+ly...地 → 经常地，频繁地
"The group have frequently used bully-boy tactics."
那个团伙常常耍流氓。
近义：oft, often, oftentimes, periodically, regularly, repeatedly
反义：occasionally, rarely, seldom, sporadically
v. 交换；兑换；改变（change的ing形式）
近义：astable, astatic, shifting, unsettled, unstable, unsteady
反义：immutable, incessant, lasting, assiduous, permanent, persistent