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Words
Kanji
石
炭
系
【
shí
tàn
xì
】
carboniferous system
coal measure (geology)
石
炭
系
【
shí
tàn
xì
】
carboniferous system
coal measure (geology)
石
HSK 3
1
含义
stone, rock, mineral; Kangxi radical 112
拼音
shí
Details
炭
HSK 7-9
5
含义
charcoal; coal; carbon
拼音
tàn
Details
系
HSK 1
5
含义
system; line, link, connection
拼音
xì
Details