So crop breeders must race to develop varieties with the right R genes before new disease strains render existing varieties useless.

因而农作物培育者需要赶在新型疾病使现有品种失去价值之前，开发具有正确的R基因的品种。

youdao

The sign is formed by a line across the right foot of the letter "R."

VOA: special.2009.03.22

In an orbital is remember that this area right here at r equals zerio, that is not a node.

例如对于１ｓ轨道,记住这里ｒ等于０处不是一个节点。

麻省理工公开课 - 化学原理课程节选

RT2 So it's R T2, right, now we're at a lower temperature times log the log of V4 over V3.

等于，这时温度比刚才低,乘以。

麻省理工公开课 - 热力学与动力学课程节选

There's a popular reverse acronym among the "prepper" community that goes right along with a famous R.

CNN: Be honest: Apocalypse seems kind of exciting, in a way

"I feel like he's come up with something that might actually attract broad enough support that it could be acted on and acted on quickly, because it is narrower, it's focused, and it's right now, " Lott, R-Mississippi, said of Roth's plan.

CNN: On heels of Bush plan, Lott confident of congressional prescription compromise

The Jets edition of "Hard Knocks" was foul-mouthed, unapologetic and often irresistible, and the R-rated club went right back out and reached the AFC championship again.

WSJ: Jason Gay: Let's Go Eat Another Bleeping Snack