Black substance
[醫(yī)] 黑質(zhì)
?? 詞語(yǔ)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;
substance
['s?bst?ns]
n. 物質(zhì)，材料;實(shí)質(zhì)，內(nèi)容;[神]靈;（織品的）質(zhì)地;
sub下面+st站立+ance表名詞→站在下面的東西→物質(zhì)；本質(zhì)
??? 情景例句
I continued to teach piano lessons at home.
我繼續(xù)在家教鋼琴。
This is our play road.
這里是我們游戲的地方。
The conference was very well organized. Everything began and finished on time.
會(huì)議安排的很好。開(kāi)始和結(jié)束都準(zhǔn)時(shí)。