成千上万

上千 shàngqiān #6,586

over a thousand / thousands of

千万 qiānwàn HSK 3 #1,709

by all means / absolutely (must) / whatever you do

千真万确 qiānzhēn-wànquè #8,667

absolutely true; beyond any doubt / the absolute truth; one hundred percent certain

上百万 shàngbǎiwàn #8,714

millions; over a million / in the millions

成天 chéngtiān HSK 7-9 #7,329

all day long / all the time

成年 chéngnián HSK 7-9 #7,991

to reach adulthood / grown-up / adult / the whole year

千军万马 qiānjūn-wànmǎ HSK 7-9 #61,922

a vast army; a mighty force / an overwhelming number of people

千变万化 qiānbiàn-wànhuà HSK 7-9 #41,928

ever-changing / constantly shifting / infinitely varied

千家万户 qiānjiā-wànhù HSK 7-9 #45,251

every household / countless families / the general public

碰上 pèngshàng HSK 7-9 #5,188

to run into; to come across / to encounter (by chance)