Alluvium
n. 冲积层, 淤积层\\n[机] 冲积层
✅ 同义词
🗣️ 情景例句
worrying about him.
为他操心。
How's your niece?
你的侄儿好吗？
George showed me to the guestroom which, he said, was rarely used.
乔治把我领进客房，说这间很少使用。