"Only if we discuss the consequences of our biophysical limits," the December warning letter says, "can we have the hope to reduce their speed, severity and harm."

12月的警告信中写道：“只有当我们讨论生物物理极限的后果时，我们才有希望降低其速度、严重性和危害。”

youdao

Remember that you need to press a letter key or keys to trigger the rocket motion; depending on your computer's speed, you might experience a slight delay before the rockets appear.

记住，您需要按一个或多个字母键来触发火箭运动；根据您的计算机的速度，您可能在火箭出现之前会感觉到一点延迟。

youdao

She answered my letter with remarkable speed.

她飞快地回复了我的信件。

youdao

It involves the relationship of energy, mass and the speed of light, written as the letter c.

VOA: special.2010.07.16

Medvedev said the letter was positive, and that he appreciates the speed with which Obama responded, the spokesman said.

CNN: Obama downplays letter to Russia regarding nuclear Iran