Geotextiles
(geotextile 的復數) 土工織物
??? 情景例句
Hello, may I speak with…?
喂， 我可以和……說話嗎？
He is attending a morning intensive course four hours a day, six days a week.
他每周六早晨都上一門4小時的速成課。
The letter x stands for an unknown number.
字母x代表未知數。