As objects travel through the air, the air molecules are pushed aside with great force and this forms a shock wave much like a boat creates a bow wave.

随着物体在空气中飞过，气体分子被强大的力推到一边，形成了一个船的舷波一样的冲击气流。

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But for two or three weeks now the Mekong has been back to its usual roiling brown, and the cargo boats throw up a huge bow wave as they inch upstream.

仅两三周时间，湄公河现在又恢复了其汹涌之浊浪，满载货物的货船向上游慢慢驶去，船后抛起巨浪。

youdao

But for two or three weeks now the Mekong has been back to its usual roiling brown, and the cargo boats throw up a huge bow wave as they inch upstream.

仅两三周时间，湄公河现在又恢复了其汹涌之浊浪，满载货物的货船向上游慢慢驶去，船后抛起巨浪。

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