支持, 維持
to give help or support to something, especially an economy or a system, so that it can continue to exist
:
• The government had to prop up the failing banks.
政府不得不支持那些瀕臨倒閉的銀行。
• Foreign aid is used to prop up the country's weak economy.
外國援助被用來支撐該國疲軟的經濟。