迄今为止,调查组尚未公布事故的最终责任认定。Qìjīn wéizhǐ, diàocházǔ shàngwèi gōngbù shìgù de zuìzhōng zérèn rèndìng.So far, the investigation team has not yet announced its final determination of responsibility for the accident.
这是迄今发现的最大的一枚古代钱币。Zhè shì qìjīn fāxiàn de zuì dà de yī méi gǔdài qiánbì.This is the largest ancient coin discovered so far.
他迄今没有回我任何一条消息。Tā qìjīn méiyǒu huí wǒ rènhé yī tiáo xiāoxi.Up to now he hasn't replied to a single message of mine.