Estes

Bepaler

  dous

2

Selfstandige naamwoord

 experimentos ilustran  como

Ondergeskikte voegwoord

  o

Bepaler

  desenvolvemento

Selfstandige naamwoord

  de

Aanneming

 vacinas  vai

Hulp

  ser

Hulp

  moi

Bywoord

  difícil

Byvoeglike naamwoord

.

These two experiments illustrate how vaccine development is going to be very difficult.

These two experiments illustrate how vaccine development is going to be very difficult.