Suddenly, the starting signal was given. His mother shouted, Boy, be careful!

突然，出发信号给了，他的妈妈喊道：孩子，小心！

youdao

Suddenly, the starting signal was given. His mother shouted, "Boy, be careful!"

突然，出发信号给了，他的妈妈喊道：“孩子，小心！”

youdao

The participants are not allowed to touch the tobacco until the starting signal is given.

在开始信号给出前，参赛者不得接触烟草。

youdao

Their idealised version of this question was to ask how two signal chemicals, starting from opposite ends of an embryo, could result in a pattern that looked like the French flag (ie, three different coloured vertical stripes).

ECONOMIST: Genetic engineering

Health care stocks are starting to perform a little bit better, which may signal that the market is viewing a Republican victory favorably.

FORBES: Q4 Expected Growth Rate Is Low, All Eyes On Quant Easing