Many people have difficulty in walking, for example through age or frailty.许多人行走有困难，譬如说由于年老或虚弱。Less profitable business operations will have difficulty in finding financial support.盈利较少的企业将很难得到财政资助。Many people have difficulty in rebuilding their lives when they come out of prison.很多人在出狱后很难重新过正常的生活。