Lichens, which grow slowly and live for many years, result from fungi and algae living together.地衣类植物生长速度慢,有好几年的寿命.其生长依赖于霉菌和海藻的共生.The canvas is also water - proof, cold - resistant and fungi - proof , thus meeting the ap...
I had neer seen a weighted, jangling, belly-swollen giant flop down a chimney and gaily dispense his largesse under a Christmas tree.我从来没见过一个沉重的、叮当响的、大腹便便的巨人扑通跳进烟囱，在圣诞树下快活地分发赐赠。...grateful recipients of their largesse.对他...