Obstruents
(obstruent 的复数) n.[罕][解](体内通道的)堵塞物(例如肾石), 止泻剂\\na. [罕]闭塞的, 阻碍的
🗣️ 情景例句
Stay ... stay.
再待一会儿……再一会儿。
How much is this carpet per square yard?
地毯每平方码要多少钱？
For one thing they keep the water clean.
一来，水下植物可以保持水的清洁。