to avoid laughing in a funny situation
избегать смеха в смешной ситуации (izbegat' smekha v smeshnoy situatsii)
"It was hard to keep a straight face during his silly speech."
"Было трудно сохранить серьезное лицо во время его глупой речи." (Bylo trudno sokhranit' serioznoe litso vo vremya ego glupoy rechi.)
to escape from control or restriction
the most important or powerful person
take advantage of a good situation while it lasts
to make changes to something to make it more interesting or...
The greater the risk, the greater the potential benefit.
to move carefully to avoid disturbance