They have many interesting physical properties, such as symmetric band structure, strong temperature dependences of energy gaps, absence of a heavy hole band, and low Auger recombination rates, etc.

He had obviously decided that Whitewater was a dry hole and this was a graceful way out, but he received heavy criticism for his decision.

Early in the morning, a peasant came along and saw him, he went out onto the ice and hammered a hole in it with his heavy wooden shoe, and carried the duckling home to his wife.