阿盟于本周重申了该项承诺继续合法有效。
That promise, reiterated by the Arab League this week, still stands.
而这种合法有效的服务方式大多数可以以比较优惠的价格获得。
While this can be a legitimate and useful service, much of it can be obtained more cheaply.
每份工作描述及附件须经双方签署并作为本合同合法有效的组成部分。
Each Statement of Work and Appendices must be signed by the parties and constitute the reference to this Contract.
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