Correct

上冻

/ shàng dòng /
Strokes

Example

As a Verb

freeze (up); ice up

1
shang
路上
dòng
le
  

The roads are iced up.

2
jīng
已经
shàng
dòng
le
  

The river has frozen over.

3
Zài
shàngdòng
上冻
qián
hǎo
地基

finish the foundations before the ground freezes

4
Shàng
dòng
qián
wángōng
完工

finish the work before a freeze sets in