nà míng / yì yuán / yuán běn / zhī chí / gāi / fǎ àn / hòu lái / tū rán / dǎo gē / gǎi tóu / fǎn duì piào

那名议员原本支持该法案，后来突然倒戈，改投反对票。

That lawmaker originally supported the bill, but later suddenly switched sides and voted against it.