ph.
force someone to persist with
Oxford American Dictionary
ph.
prevent (someone or something) from approaching or having an effect
Oxford American Dictionary
ph.
annoy someone by making frequent requests
Oxford American Dictionary
ph.
annoy someone by making frequent requests
Oxford Dictionary
ph.
force someone to persist with
Oxford Dictionary
ph.
prevent (someone or something) from approaching or having an effect
Oxford Dictionary
ph.
persist (or force someone to persist) with
Oxford Dictionary
ph.
persist (or force someone to persist) with
Oxford American Dictionary