Black substance
[医] 黑质
🧩 词语组成解析
black
[blæk]
adj. 黑（色）的;黑色人种的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑颜料;黑暗;
v. 使变黑;抵制;拒绝;使变黑暗;
🗣️ 情景例句
Yes, most of them are, except for the plastic parts.
对，除了塑料制品其他都是。
The spacecraft is scheduled to arrive at Saturn next year.
太空船预定明年到达土星。
that the annual drug bill of the Health Services is mounting to astronomical figures
卫生部门的年度药费上升到了天文数字，