Pilocystidium
蓋面囊狀體
??? 情景例句
to meet the rest of the troop at two o'clock at the museum.
我們得在兩點(diǎn)鐘到博物館與其他童子軍會(huì)合。
What are you doing?
你正在做什么？
we are now pretty certain the Earth is the only one on which life can survive.
我們目前可以肯定的是，地球是生命能存在的唯一行星。