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an employee (of/in…)，
a staff member(of…)；one of the staff members (of…)，
a member of staff (of…), one of the members of the staff (of…)，
on the staff (of…)。《牛津高阶英汉双解词典》第六版第1709页staff词条在英国英语中，staff（第1义）可作单数：a staff of ten (= a group of ten people)职工十人亦可作复数：I have ten staff working for me. 我手下有十名职员。该词若用作动词的主语，该动词用复数：The staff in this shop are very helpful. 这家店里的员工非常乐意帮忙。在美国英语中，staff（第1及第2义）只能做单数：a staff of ten职工十人（但不能用ten staff）The staff in this store is very helpful. 这家店里的员工非常乐意帮忙。复数形式staffs较少用，但在英国英语和美国英语中均指两批或以上的职员：the senator and his staff 参议员及他的工作人员（单数）senators and their staffs参议员及他们的工作人员（复数）《文馨当代英汉词典》第页staff词条staff（集合用法）全体职员，人员；教职员a staff of twenty people 20名的职员We have 30 on our staff. = We have a staff of 30. 我们有30名职员。the teaching staff（某一学校的）全体教师，教授阵容Our school’s teaching staff is/are excellent. 我们学校的教师阵容很优秀。be on the staff为职员/人员之一《柯林斯高级英语用法词典》第862页staff词条staff表示“全体成员；（全体）职员”。She was invited to join the staff of the BBC. 她被邀请成为英国广播公司的职员。The police questioned me and all the staff. 警察询问了我和所有的职员。在staff后，可以用动词的复数或单数形式，用复数形式更为常见。The staff are very helpful. 职工们很愿意帮忙。The FI staff is concerned with intelligence collection operations.
FI的职员关心情报收集工作。一个组织中的个人不能说出a staff，而应称之为a member of staff。There are two students to every member of staff. 每个职工有两个学生。At times members of HQ staff adopted a secretive attitude.
总部的职员市场采取隐瞒的态度。《韦氏高阶英汉双解词典》第2036页staff词条staff（复数staffs）全体人员；全体员工The entire staff has done a great job this year. 今年，全体员工表现甚佳。The staff is at a meeting. 员工们在开会。She is a new member of the staff. 她是一名新员工。He has been on the staff (= a member of the staff) for 25 years.
他是已经工作了25年的老员工了。staff可用作复数名词，指全体员工的各成员：The company employs 20 full-time staff. 这家公司雇用了20名全职员工。The staff are at a meeting. 员工们正在开会。《剑桥高阶英汉双解词典》第2175页staff词条staff意为商店、公司等的全体员工，始终是集合名词。若指单独的一名员工，则说a member of staff。The company employs around 150 staff. 公司约有150名员工。Is there a member of staff who can speak Spanish?
有没有一个会说西班牙语的员工？He is on (= a member of) the editorial staff of the magazine.
他是该杂志社的一名编辑人员。《柯林斯高阶英汉双解学习词典》第2572页staff词条staff（一组织的）全体工作人员，全体职员The staff were very good. 职员都很出色。The outpatient program has a staff of six people. 门诊部有6名工作人员。members of staff职员staff（全体工作人员中的）部分成员10 staffwere allocated to the task 10名员工被分配来完成这项任务《麦克米伦高阶英汉双解词典》第2032页staff词条staff员工/全体职员/全体工作人员；普通职员；雇员——以上三种含义的staff，后可接动词的单数或复数形式The staff are not happy about the new arrangement. 员工们不喜欢新的安排。《朗文当代高级英语辞典》第五版第2464页staff词条在英国英语中，staff常用作复数名词，后跟复数动词：We need to recruit more staff. 我们需要招募更多员工。All the teaching staff were women. 所有教员都是女性。在美国英语中，staff通常不这样使用，也不可跟复数动词。绝不要说a staff。要说a staff member, a member of staff（英式），或an employee）。2017年11月17日
