Coal-cutters
(coal-cutter 的復數) 采煤機；[礦業] 截煤機；切煤機
?? 詞語組成解析
coal
[kol]
n. 煤;煤塊;煤堆;木炭;
vi. 上煤;加煤;
vt. 給…加煤;把…燒成炭;
n. 刀具；中部葉；傾斜節理；切割者, 剪削者（cutter的復數）
??? 情景例句
Michigan needs a touchdown.
Michigan隊需要一次達陣得分。
I often go to the office in the morning.
我常常在早上去辦公室。
This is because the surface of the earth is not flat but round.
因為地球表面不是平的，而是圓的。