Ainda não temos significados para "become frothy".
1Even China's bullish securities regulators admitted markets had become frothy before they turned down.
2Few analysts foresee the green energy market becoming frothy in 2010.
3When fused and ignited on charcoal, its surface becomes frothy, indicating the nitric acid.
4Let the mixture sit for 5 minutes, or until it becomes frothy and bubbles form.
5Pour in sauceboat, and place boat in a pan of boiling water on stove, until it becomes frothy then serve immediately.
6For cold preparation, shake first four ingredients with egg whites in shaker without ice until mixture becomes frothy, about 30 seconds.
7In a jug, mix together the water, yeast and sugar and allow to sit for six to eight minutes or until it becomes frothy.