So no matter what I did, no matter how hard I tried, I would not be able to swim back upstream.

所以无论我怎么拼命挣扎都不可能逆流而上。

The landslide blocked off the section of the river, which meant the salmon could not swim upstream to spawn (lay their eggs).

滑坡堵塞了河段，这意味着鲑鱼无法游到上游产卵。

He swam quartering upstream, but still was swept downward rather faster than he had expected.

他逆流而上，但仍然比他预期的更快地被冲下。

Right now, there's a proposal in Congress to take down four of the dams, which could help the salmon as they swim their way upstream.

- 现在，国会有一项提案，拆除其中四座大坝，这可以帮助鲑鱼游向上游。

To keep the genetic pool intact, any farmed salmon that swim upstream there get clubbed to death with an offcut two-by-four (the club-wielder, Henrik Weiss, explains that the official salmon stick was chewed to pieces by a dog).

为了保持基因库的完整，任何逆流而上的养殖鲑鱼都会被一根 2×4 的木板碎片打死（挥舞木棒的人亨利克·韦斯 (Henrik Weiss) 解释说，官方的鲑鱼棒是被狗咬碎的）。

The season for wild Atlantic salmon, which swim upstream from the ocean, starts on June 1st, and for months after, the whipping of fly-lines accompanies the low rumble of white water wending its way down to the fjord below.

野生大西洋鲑鱼从海洋逆流而上游动，捕鱼季节从 6 月 1 日开始，在之后的几个月里，飞线的鞭打伴随着白水低沉的隆隆声，流向下面的峡湾。