"It shows mangroves are probably pretty good candidates for things like carbon-market trading to encourage sustainable forest management."

VOA: special.2011.05.10

The second principle is did the distribution arise from the operation of free consent, people buying and trading on the market?

第二条原则，财富的分配是否,基于自由达成的交易，基于自由市场的买卖？

耶鲁公开课 - 公正课程节选

We wanted this to be a twenty shilling coin but now in the market it's trading at twenty-one.

我们希望它是一个值二十先令的硬币,但现在它在市场上以二十一个先令的价值来交换。

耶鲁公开课 - 金融市场课程节选

Also,the IMF says the activity of these trading systems is largely outside the reach of market regulators.

VOA: special.2011.01.14

But Thailand's stock market fell for a second day, down more than eight percent in trading, after rumors spread about the health of King Bhumiphol Adulyadej.

VOA: standard.2009.10.15