Started

1. vp (were)
2. were to +v原
3. should+ v原
should start
produce V
product N
production= out put
Security system
Mean to do
Mean doing
prefer A to B
Clearly----obviously
person----personality
enlarge
deepen
sharpen
minimum
sharpener
be aware of ---be unaware of
He is not aware of his pain at all.
Accurate
At ease
This medicine can ease your pain.
Encounter
Begin to do = begin doing
Start to do = start doing
Supply sb. With sth.