Scientists want to bring a chunk of the red planet down to Earth on what's called a sample-return mission.

科学家们希望将这颗红色星球的一大块带回地球，进行所谓的取样返回任务。

youdao

Even with snow on the ground, the high bushy understory is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder, and other arboreal fodder.

即使地上有雪，高而浓密的下层植被也显露出来；雪和风也会吹落雪松、铁杉、红桤木多叶的树枝和其他的树木草料。

youdao

I put down the two red circles!

我放下了那两个红色的圆圈！

youdao

Not just any woman, but a wild,red- haired woman, riding a giant catfish down the Rio Grande River.

VOA: special.2009.11.28

He saw them,and kneeling down he pulled from his pack three huge,red apples.

VOA: special.2009.12.12

Saturday's protest took a more confrontational stance as Red Shirt protesters demanded troops stationed close to the rally site in central Bangkok to stand down.

VOA: standard.2010.03.27

Hunter's latter effort could have been a maximum but he failed to pot a very difficult 15th red down the side cushion.

BBC: O'Sullivan returns to form

Hilda in her red down jacket came out with the dog as she parked: it was a short-haired terrier, alert and intelligent, white with a brown patch over one eye.

NEWYORKER: She��s the One

Investment banks Goldman Sachs and Morgan Stanley are also seeing red today down 2.7% and 1.7% respectively.

FORBES: This Big Bank Doesn't Have To Worry About Today's Big Moody's Downgrade