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汉语拼音：shā bà

1.一个堤、坡、坝或滩上的大型沙积物。

2.又名滨外沙洲。位于海面以下或部分露出的脊，由波浪从海滩向海运移的沙或粗粒沉积物构成。

1. 方言。沙土平地。

   沙汀 《丁跛公》：“这里离城只有七八里远近，除了快近市街时有一片沙坝，其馀是山沟路。”

2. 指滨海沙砾或卵石顺延海岸方向所构成的狭长海岸堆积地貌，因形如堤坝，故名。

• The sandbank was uncertain, like quicksand under his feet.

  那个沙坝并不稳固，他脚下如同踩着流沙一般。

• Channel and point - bar sands may be clean and well - sorted.

  河道砂和河曲沙坝砂可以是干净的和分选良好的.

• These sandstones are interpreted as having originally been point bar deposits.

  这些砂岩在成因上被解释为点沙坝沉积.

• Prograding bar - finger sand bodies are over - ridden by distributary channels as the shoreline retreats.

  当海岸线后退时,向海推进的指状沙坝被分流河道所覆盖.

• The village birds return home after playing on the sand bank.

  结束了沙坝的嬉戏,乡村的鸟儿已经回巢.

• The birds on the sand bank are continually crying.

  沙坝的鸟儿依然在嚎啼.

• As the distributary - mouth area progrades, these bar sands develop into the bar - finger sands.

  在支流河口区域运动时, 这些沙洲的沙发展成指状沙坝.

• It is the quickest method of getting rid of sand banks with relatively loosely packed silt.

  这个方法清除松散堆积的沙坝最快.

• Wright says there are more sand banks visible in the river than in past years.

  赖特说现在可以在河里看到比往年更多的沙坝了.