Coal concentrate
[化] 洗煤
🧩 词语组成解析
coal
[kol]
n. 煤;煤块;煤堆;木炭;
vi. 上煤;加煤;
vt. 给…加煤;把…烧成炭;
concentrate
['kɑnsn'tret]
vt.& vi. 专心于;注意;集中;聚集;
vt. 浓缩，（使）浓缩;[采矿]汰选;选矿，精选，富集;
vi. 凝缩，浓缩，提纯;
n. 浓缩物;
adj. 集中起来的，经过浓缩的;
con共同+centr中心+ate动词后缀→集中；浓缩
🗣️ 情景例句
from the first time you stayed with us.
自从你们第一次在我们这里住开始
A police dog follows a scent.
一条警犬在追踪着气味。
that the traveller abroad thereby denies himself the opportunity of getting to know the people of the country visited.
说这种封闭的作法使到国外旅游者失去了了解所去国家人民的机会。