🧩 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;
marked
[mɑ:kt]
adj. 显著的，著名的;有记号的;加印记的;受监视的;
v. 表示(mark的过去分词);作记号;给…打分;在…留下痕迹;
🗣️ 情景例句
and they always will be.
将来也永远会如此。
That house is for sale. It has central heating.
此房出售，房子里有供暖设备。
and in the course of a few hundred miles reaches the true ocean floor at 2,500-3,500 fathoms.
一直延伸到几百英里远深达2，500至3，500的地方，