不带~at_least参数的take_while可以匹配零个字符。它总是成功。
Footage of an F-15 falling out of the sky this morning over Kuwait, in an apparent “friendly fire” incident involving the U.S. Air Force. pic.twitter.com/GQvryfJ4C4。搜狗输入法下载对此有专业解读
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Reddit’s Shadow
"Those populations will most likely be UK and northern European breeding populations that have been wintering out at sea and have been picked up in the storms during the last couple of months and bashed around the place," he said.，更多细节参见有道翻译