🧩 词语组成解析
tract
[trækt]
n. 大片土地;（神经纤维的）束;小册子;<古>一段时间，长时间;
smear
[smɪr]
v. 胡乱涂抹;弄脏;诽谤;变得模糊不清;
n. 污迹;抹黑;丑化;
🗣️ 情景例句
Things here work very differently from back home.
这里的情况与你国家的情况有很多不同。
The secret of wealth lieth in the letters SAVE.
节俭是致富的秘诀。
But even the mosquito has been subdued by attention to drainage and by chemical sprays.
然而即使蚊子，也由于我们注意清理污水和喷洒化学药品而被制服了。