基本解释[拉]选择同根派生 英汉例句Training preparatio should offer joint commanders as many optio as po ible.训练准备工作应该向联合指挥官提供选择的余地。If time is not pre ing, sieges or neutralization will be likely optio of choice.如果时间不紧迫，也可以选择围攻或火力压制。