求翻译：1921年召开华盛顿会议期间。1922年2月4日，中国和日本还在华盛顿签订了《解决山东问题悬案条约》及其附约。条约规定，日本将德国旧租借地交还中国，中国将该地全部开为商埠；原驻青岛、胶济铁路及其支线的日军应立即撤退；青岛海关归还中国；胶济铁路及其支线归还中国等。附约中规定了对日本人和外国侨民的许多特殊权利，但是中国通过该条约收回了山东半岛主权和胶济铁路权益。是什么意思？

Held in 1921 during the Washington Conference. February 4, 1922, China and Japan is still in Washington signed the Treaty on the Settlement of Shandong problems unsolved and its rider. The provisions of the treaty, Japan, Germany's old concession returned to China, China that all open as a commercia

In 1921 Washington, D.C. , held during the Conference. February 4, 1922, China and Japan also signed in Washington, D.C. , on the issues of Treaty of Shandong province and its attached. Provisions of the Treaty, Japan will be leased back to the old China, the Chinese will be the commercial for all t

In 1921 convened Washington conference period.On February 4, 1922, China and Japan also signed in Washington "Have solved Shandong Question Unsettled law case Treaty" and the complementary treaty.The treaty stipulated that, Japan the German old leased territory will return China, China this opens co

During a Washington meeting in 1921. On February 4, 1922, in China and Japan in Washington also signed a Treaty on the settlement issue outstanding cases in Shandong province and its report about. Provisions of the Treaty, Japan Germany old leased to China, will be open to all the ports in China; or

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