The extent to which it helped to promote Britain's broader strategic interests was sometimes questionable.这究竟在何种程度上有益于英国获得更广泛的战略利益，有时仍旧令人生疑。The extent to which it helped to promote Britain's broader strategic interests was sometimes questionable.它对于促进英国获得更广泛的战略利益到底有多大的帮助，这一点有时候值得怀疑。