— What does that man look like?
— He's of medium height and very ____.
利用钨制作灯泡里的灯丝,而不用锡的主要原因是( )
为了防止废弃塑料带来的“白色污染”,下列做法不可取的是( )
读拼音,写词语
yǔ sǎn cài dāo jú huā shǒu biǎo pí qiú yī fu
____ ____ ____ ____ ____ ____