该方案一旦搁浅，数百万人将失去赖以维生的基本保障。
If it were to fail, the plan would leave millions without the basic support they depend on.
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If英 /ɪf/|美 /ɪf/
it英 /ɪt/|美 /ɪt/
were英 /wɜː/|美 /wər/
to英 /tuː/|美 /tu/|英 /tə/|美 /tə/
fail英 /feɪl/|美 /feɪl/
解释
"if it were to fail" 构成正式虚拟条件句，were + to-不定式引入假设性失败场景，主句用 would leave 描绘假设性后果
If it were to fail, the plan would leave millions without the basic support they depend on.
"if it were to fail" 构成正式虚拟条件句，were + to-不定式引入假设性失败场景，主句用 would leave 描绘假设性后果