U1. Undergo / Unfold / Upside

#1. Undergo

: If you undergo something necessary or unpleasant, it happens to you.

: to experience sth that is unpleasant or sth that involves a change:

: to experience or be subjected to something, typically something challenging or significant.

 

 

ex) The equipment has undergone several important design changes in recent years. 

ex) After the accident, his personality underwent a complete transformation.

ex) Some children undergo a complete transformation when they become teenagers. 

ex) Playing boardgames is undergoing a rivival in popularity.

ex) The ship is currently undergoing extensive repairs.
ex) He seems to have undergone a change in attitude recently, and has become much more co-operative. 

ex) The human body might undergo an unprecedented revolution thanks to bioengineering and direct brain-computer interfaces. 

ex) Through time, employment has undergone a drastic change. 

ex) All imported goods must undergo a thorough inspection process to ensure compliance with national safety standards.

ex) Electronic goods must undergo testing by certified institutions to obtain the required safety certificate.

 

 

#2. Upside
: the positive part of a situation that is generally bad

: the more positive aspect of a situation

: the positive part of a situation:

ex) What's the upside of telling Johnny that?
ex) Don't lower yourself to their level. There's no upside to doing this. 

ex) The upside of the new customs regulations is the significant reduction in processing time, which benefits both importers and exporters.

ex) On the upside [=when you consider the good parts or advantages], the car does have a lot of trunk space.

 

 

#3. Unfold

: If a situation unfolds, it develops and becomes known or understood. 

: if a story unfolds or if sb unfolds it, it is told to sb else. 

 

ex) Events unfolded in a way that no one could have predicted.

ex) We'll have more news as events unfold. 

ex) I guess I was lucky because the events that unfolded afterwards were more than I ever expected. 

ex) The outcome depends on conditions as well as how events unfold.