floating matter的用法和樣例：
例句
- Inside the collector was a substance called aerogel to trap particles floating in space.
在收集器的內部是一個(gè)被叫做氣凝膠一捕捉太空漂浮物的物質(zhì)。 - It should drift back from the boat, floating on the surface, and should terminate in a large, visible float.
它必須能夠從船上拽回，能夠浮在水面上，尾端固定在一個(gè)足夠大的可見(jiàn)漂浮物上。
