an alternative plan if the first one fails
第一个计划失败时的备用计划 (di yi ge jihua shibai shi de beiyong jihua)
"We should have a plan B in case things go wrong."
"我们应该有一个计划B，以防事情出错。" (women yinggai you yi ge jihua bi yi fang shiqing chucuo)
very content and comfortable
in a risky or dangerous situation
to be in control of a situation
endless opportunities or options
to stay calm by seeing things realistically
to make exceptions or not strictly follow the law or rules
