Polychroite
n. (在不同试剂作用下可呈不同颜色的)藏红花颜料
🗣️ 情景例句
A credit card is very useful when you go traveling.
当然旅游的时候，信用卡很有用。
OK. You'll have to use a credit card or leave a $100 deposit.
好。你必须使用信用卡，否则要付100美元的押金。
Because they destroy so many insects, and insects include some of the greatest enemies of the human race.
因为它们能消灭那么多的昆虫，其中包括一些人类的大敌，