They have only a vague idea of the amount of water available.他们只是大概知道可用水的总量。He was vague, however, about just what U.S. forces might actually do.然而，他对美军实际可能采取的行动却闪烁其词。The ideas seem sketchily developed, the textures thin...
在双盲试验中，改善效果明显。In a double-blind trial, there were definite improvements.雕像用一双盲眼俯视着他们。The statue stared down at them with sightless eyes.导盲犬是盲人的忠实伙伴.The seeing eye dog was the blind man's constant companion....