Day4 being strong

You never know how strong you really are until being strong is the only choice you have。
不到没有退路之时，你永远不会知道自己有多强大。
*never (not at any time or not on any occasion) adv.从不
*choice (an act or the possibility of choosing) n.选择
--choose (to decide what you want from two or more things or possibilities) v.选择
* … is the only choice you have. …是你唯一的选择。