qīng tíng diǎn shuǐ
lit. the dragonfly touches the water lightly
superficial contact (idiom)
diǎn shuǐ
to skim
lightly touching the water (as the dragonfly in the idiom 蜻蜓點水|蜻蜓点水)
skin deep
sān diǎn shuǐ
name of "water" radical in Chinese characters (Kangxi radical 85)
see also 氵[shui3]
liǎng diǎn shuǐ
name of "ice" radical in Chinese characters (Kangxi radical 15)
see also 冫[bing1]
diǎn shuǐ bù lòu
not one drop of water leaks (idiom); fig. thoughtful and completely rigorous
watertight
yī diǎn shuǐ yī gè pào
honest and trustworthy (idiom)