Eriochrome black a
[化] 酸性媒介黑A
?? 詞語組成解析
black
[bl?k]
adj. 黑（色）的;黑色人種的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑顏料;黑暗;
v. 使變黑;抵制;拒絕;使變黑暗;
??? 情景例句
Maybe you saw our commercials on TV.
也許你在電視上看過我們的廣告。
If I buy tha car,I'll have to borrow some money.
如果我買了那汽車，我將不得不借一些錢。
Every year, several classes visit the factory.
每年都有好幾個班去參觀這家工廠。