Don't count your chickens before they are hatched.
不要打如意算盘。
We should never jump to conclusions and take things for granted.
当我们在做计划时，绝不要遽下结论，也不要把事情视为理所当然。
Sometimes when making plans, things don-t always turn out as we have planned.
做计划时，有时事情发展的结果未必像我们所计划的那样。
We need to be on guard for the unexpected until the plan is fulfilled.
我们必须谨防意外直到计划圆满达成。