#3 the biography of Stephen Hawking

PhD (n.)
abbreviation for doctor of philosophy
the highest college or university degree, or someone who has this

• Susan has a PhD in Italian literature.
• She's a PhD.

verbs with PhD as object：

pursue + PhD

• You can now pursue a PhD in Musical composition.

earn + PhD

• McGovern earned a PhD in history from Northwestern University in 1953.

slur (v.)
to pronounce the sounds of a word in a way that is wrong or not clear

• Her speech was slurred but she still denied she was drunk.

verbs with slur as object

slur + direct

• This harassment generally involves slurs directed towards women, sex role stereotyping, and overaggressive language.

grim (adj.)
worrying, without hope

• The future looks grim.

verbs with grim

remain + grim

• Although treatments have improved, survival rates remain grim.
• The worldwide picture for tribal people remains grim.

emit (v.)
to send out a beam, noise, smell or gas

• The machine emits a high-pitched sound when you press the button.

modifiers of emit

emit + directly

• Secondary pollutants are not emitted directly.

cosmology S(n.)

the study of the nature and origin of universe

• There are three major schools on cosmology .

modifiers of cosmology

steady + cosmology

• I still advocate the quasi steady-state cosmology based on the following key observations .