各位大大好，
想请问各位一个句子，如下:
your starting monthly will be NT$10,000. In addition, company will offer you a
dditional two months of salary to be paid to you in every June and December's
payroll date under the condition of an active employee.
主要是语意上的疑问，想请教各位大大，这边additional two months 是六月和十二月各
两个月吗，抑或加总两个月呢?
谢谢各位。