ersatz
adjective disapproving uk/?e?.z?ts/ us/?er.zɑ?ts/
（通常指因为某物过于昂贵或稀有而以其他事物）代用的
used instead of something else, usually because the other thing is too expensive or rare
I'm allowed to eat ersatz chocolate made from carob beans, but it's a poor substitute for the real thing. 他们允许我吃用角豆做的巧克力替代品，不过这种以假代真的东西太蹩脚了。
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