∑ mode and △ mode

ENSO mode and ENSO-like mode

period ratio of torsion mode to translation mode

Ability to Pay

ability to pay for health care

ability to pay for health services

Ability to pay principle

ability-to-pay

accept to pay

actual pay load

additional pay

Additional Senior-increases over Basic Pay Rate

adjust to pay taxes

and problems necessary to pay attention

approach of willingness to pay

auto-pay

basic pay

broadband pay

capacity to pay

CEO pay