Lead Bank并不是特指某个银行，而是指在贷款协议或贷款安排中发挥主导作用、组织和协调其他贷款机构的银行或金融机构。

这种银行在中文里称为“牵头银行”。

具体来说，A lead bank is a bank that oversees the arrangement of loan syndication. The lead bank receives an additional fee for this service, which involves recruiting the syndicate members and negotiating the financing terms. In the Eurobond market, the lead bank acts in an agent capacity for an underwriting syndicate.

意思是：牵头银行是指负责安排贷款银团的银行。牵头银行因承担招募银团成员和协商融资条件等服务而获得额外费用。在欧洲债券市场上，牵头银行作为承销银团的代理行事。

lead bank具体的使用场景可参考如下双语示例：

Subject to the approval of the relevant central authorities, the lead bank has undertaken that banks of Hong Kong and Macao will have equal opportunities as Mainland banks for extending non-RMB denominated loans and when making RMB loans, banks of Hong Kong and Macao in the Mainland can compete with Mainland banks on an equal footing on a fair and equitable basis.

在得到中央有关部门的批准下，牵头银行会保证港澳银行和内地银行有同等权利参与向外筹组非人民币贷款；而在筹组人民币贷款时，港澳在内地的银行也可与其他内地银行在公平、公正的基础上有同等的竞争机会。

Given the terms of the loan financing arrangements by the lead bank (see paragraph 15 below), our latest estimate is that the toll level may well be set at the lower end of the range of toll levels previously assumed (e.g. around RMB ¥100 for private cars and RMB ¥200 for lorries).

基于牵头银行所提供的贷款条件(见下文第 15 段)，我们最新的估算为大桥的收费可低至之 前假设的收费幅度的下限( 例如私家车收费大概人民币 100 元；货车收费大概人民币 200 元 ) 。