Install Pandas Error

I’ve flashed RockPi4B with rockpi4_debian_stretch_lxde_armhf_20181105_2120-gpt.img. When installing pandas, error occurs

linaro@linaro-alip:/$ sudo apt-get install python3-pandas
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
python3-pandas : Depends: python3-pandas-lib (>= 0.19.2-5.1) but it is not installable
E: Unable to correct problems, you have held broken packages.

Does anyone has any idea?