Her seat slides forward and back on tracks in the center of the cockpit, which increases the OARS 'Angle of attack as they enter the water — making each stroke longer and more efficient.

她的座椅下面有个轨道，因此座椅可以前后滑动，这样在桨入水时可以增大它们的迎角，使每一次划船时桨在水中停留的时间更长，从而更有效率。

youdao

We endure a 12-hour journey over rocky tracks and roads heading back towards India. We have been warned that this will be the most gruelling leg of our trip.

我们经受了12小时的颠簸旅程回到印度，被告知这是整个旅途中最艰苦的一段。

youdao

But the migrants who arrive in the back of lorries and huddled in small boats are unskilled. For them, there are hardly any legal tracks across borders.

替技术移民辩护相对容易，可是非技术移民几乎都是采取非法途径过境，要么躲在卡车后部，要么挤在艘小船里。

youdao

Now he has very little time to get the train back on the tracks.

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To hear that old rumble of steel wheels come grumbling up behind you, to turn and see those green streetcars back on the tracks again is like seeing an old friend who's been away a while.

NPR: Long Desired, Streetcar Returns to New Orleans

They followed a path invisible under the snow, down toward the woods along the side of a big L-shaped field, the dog scouting ahead of them, racing back on her tracks to herd her humans together, straining her ears yearningly at the perturbed, watchful sheep.

NEWYORKER: She��s the One