wèi / le / xiǎng / chū / jiě / jué / bàn / fǎ / tā / kǔ / sī / míng / xiǎng / le / zhěng / zhěng / yí / ge / wǎn / shàng

为了想出解决办法，他苦思冥想了整整一个晚上。

He racked his brains all night to come up with a solution.