chuyên gia chuyên viên 
specialist like: chuyên viên → →
Ich werde Ihnen einen Techniker schicken. ☊ 
Tôi sẽ gửi một chuyên viên kỹ thuật tới chỗ quý khách. ☊ (Lektion 119, Nr. 2284) include sth: The tour included a visit to the Science Museum. ☊ include ☊
All that preparation was for nothing because the visit was cancelled. ☊ for nothing ☊
A visit to the museum will take you back in time to the 1930s. ☊ time ☊
a visit to the doctor ☊ visit ☊