常見例句雙語例句How were paper birch and Douglas fir communicating?紙皮樺和花旗松到底是怎么交流的呢?This clump of paper birch trunks was backlit by a blaze of reds and yellows.這一堆紙樺樹的樹干是由紅色和黃色的火焰來作為它的背光。Paper birch is the best of the hardwood, often running in bursting strength up to 80% and in tearing strength up to 90% of spruce pulp.白樺通常是比較適合的闊葉木,其漿料的撕裂度可以達到云杉漿的80%,耐破度可以達到云杉漿的90%。 返回 paper birch