on the pretext of

基本解释

It cannot fire women or unilaterally annul their labor contracts on the pretext of marriage, pregnancy, maternity leave or baby nursing.
不得以结婚、怀孕、产假、哺乳等为由，辞退女职工或单方面解除劳动合同；
When I resisted, they beat me with anything at hand, " said Munni, who had managed to leave her home after three months only on the pretext of visiting a doctor."
如果我反抗，他们随手抄起东西就打我。”三个月后，以看医生为借口，穆尼才获准出家门。
The boy refuses to go to school on [under] the pretext of illness [an ailment, sickness].
这孩子装病不去上学。
《新英汉大辞典》

On the pretext of settling labour disputes, they have extorted large sums of money.
ECONOMIST: The judiciary defies President Mugabe
Kerik withdrew his name on the pretext of having once hired a nanny who may have been an undocumented alien.
FORBES: As a businessman, he's been mixing with a sketchier crowd.
Does it mean that the Arab world prefers illegal takeover of governments on the pretext of elimination of corruption and nepotism?
ECONOMIST: Letters