Is usb 3.0 backward compatible with earlier usb standards ?

usb3.0向前与旧版本usb标准兼容么？

Nor are rising gold and equity prices necessarily compatible .

金价和股价同时上涨也不一定相容。

We need compatible national systems ; we need to enforce rulings and this must happen quickly .

我们需要相容的各国专利制度；我们需要强制执行判决，而这一点必须尽快做到。

But mutually compatible national interests are often best served through co-operation .

但彼此兼容的国家利益常常会通过合作得到最好体现。

Advice about which plants are compatible is sometimes based more on tradition than proof .

有关哪些植物能够互相兼容有时候更多取决于传统而不是论证。