sand spit的用法和樣例：
例句
- The growth of these bars is limited by the depth at which waves will plunge and prevent further sand encroachment.
這些砂洲的生長(cháng)僅限于波浪能沖進(jìn)的深度，并且阻擋了外邊砂質(zhì)物的進(jìn)入。 - The sand carried outside the bar is spread out over the slope by the expanding head of the rip current.
從砂洲外面搬出去的砂質(zhì)物，在急流的洶涌水頭作用下被展布于整個(gè)斜坡上。
