气孔

zhí wù de qì kǒng

植物的气孔

stoma of plant

qì kǒng wèi zhi

气孔位置

location of stoma

qì kǒng dà xiǎo

气孔大小

scale of gas hole

dài qì kǒng de hé zi

带气孔的盒子

box with gas hole

chuān guo qì kǒng

穿过气孔

get through air hole