船经过漫长而乏味的航行后，遇到了逆风和逆流。

A ship, after a long and tedious voyage, was met by head-winds and unfavorable currents.

youdao

每年瓦兰提斯的元老们都会三次派遣载着给养的大船逆流向上，但是这怜悯之船总是迟到而且有时会带回比食物更多的人口。

Thrice each year the triarchs of Volantis send a galley upriver with provisions, but the mercy ships are oft late and sometimes bring more mouths than food.

youdao

船正在河上逆流而上。

The boat was going up the river.

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