The following video demonstrates each syllable of the pinyin structure
and the exercise of pinyin/zhuyin with basic Chinese 4-tune pronunciation

Mandarin pinyin tunes
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lōu, lóu, lǒu, lòu

second tune

lóu

multi-story building floor (story) of a high building 樓 lóu

upstairs 樓上 lóu shàng
floor of a building 樓 lóu	upper; above 上 shàng

downstairs 樓下 lóu xià
floor of a building 樓 lóu	down; under 下 xià

Chinese characters also pronunced lóu

third tune

lǒu

hug; embrace; cuddle 摟 lǒu

basket; bamboo basket 簍 lǒu

bamboo basket 竹簍 zhú lǒu
bamboo 竹 zhú	basket 簍 lǒu

fourth tune

lòu

leak; drip divulge; disclose 漏 lòu

leaking water 漏水 lòu shuǐ
leak 漏 lòu	water 水 shuǐ

disclose (secret) leak out (information) 洩漏 xiè lòu
leak out 洩 xiè	leak; disclose 漏 lòu

undesirable; insignificant vulgar; unrefined; unfavorable 陋 lòu

simple and crude primitive and rough 簡陋 jiǎn lòu
simple 簡 jiǎn	vulgar; unrefined 陋 lòu

show; appear 露 lòu

display one's abilities show off one's abilities (Chinese idiom) 露一手 lòu yì shǒu
show 露 lòu	one 一 yì	hand 手 shǒu

Chinese characters also pronunced lòu