C:\Users\win>adb shell
oriole:/ $ su
oriole:/ # cd /da
data/          data_mirror/
oriole:/ # cd /storage/emulated/0/Download/
oriole:/storage/emulated/0/Download # pwd
/storage/emulated/0/Download
oriole:/storage/emulated/0/Download #
oriole:/storage/emulated/0/Download # exit
oriole:/ $ exit

C:\Users\win>adb push C:\Users\win\Downloads\Flag+Shot+Ball_1.0_apkcombo.com.xapk /storage/emulated/0/Download
C:\Users\win\Downloads\Flag+Shot+Ball_1.0_apkcombo.com.xap...le pushed, 0 skipped. 47.9 MB/s (36592601 bytes in 0.729s)

C:\Users\win>