clear clearly understood distinct be clear 参考例句Lacking clarity or distinctness; cloudy or obscure.模糊的不清楚的或者不明显的;含糊的或者朦胧的 Vividly, he heard the Evil-Spirit debate with him. 他清楚地听到魔鬼在同他辩论。 No one knew exactly how many pies his thumb had explored.谁都不清楚他插手了多少事情。 It is clear that obesity is a fantastically complicated condition, with a fantastic number of spots for science to step in and set things right.十分清楚的是，肥胖是一种极为复杂的病症，对科学家来说就有着极多的问题需要深入研究并正确解决它们。 We must better understand the adaptation of plants to their environment.我们必须更清楚地了解植物对环境的适应性。
十十十月
