评论区常见开头“u1s1”，它是哪句话？
Comments often start with “u1s1”. What phrase is it?
全球翻车率（内测预估）
A唯一手速
wéi yī shǒu sù · the fastest fingers
B一生一世
yì shēng yí shì · forever, for a lifetime
✓有一说一
yǒu yī shuō yī · to be honest
D说一不二
shuō yī bù èr · a person of their word
u1s1（有一说一），缩写文学考的从来不是英语，是想象力。
u1s1 = yǒu yī shuō yī (有一说一), “to be fair / honestly speaking”. Pinyin-number abbreviations are their own dialect.