have difficulty doing做某事有困难
例句:They have difficulty setting boundaries.
有困难定界限。
2.The shape depends mainly on the temperature and water levels in the air.
depend on依赖, 依靠
例句:You can't depend on your parents forever.
你不能永远依赖你的双亲。
You may depend on their support.
你可依靠他们的支持。