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A contraflow system is in operation on this section of the motorway.這段高速公路的一側(cè)正在實行雙向行駛。Until the rail links are in operation, passengers can only travel through the tunnel by coach.在鐵路連線開通之前，乘客只能乘坐長途客車穿越隧道。Part of the new...

adv.運轉(zhuǎn)著，生效...

in operation的音標：in operation的英式發(fā)音音標為：[in ??p?'rei??n]in operation的美式發(fā)音音標為：[?n ?ɑp?'re??n]...