Silvichemical
n. 從樹木中提煉的化學(xué)物質(zhì),林(產(chǎn))化(工)產(chǎn)品
??? 情景例句
He was dumb from birth.
他生下來就是啞巴。
A smooth sea never made a skillful mariner.
平靜的海洋練不出熟練的水手。
Keep it up!
堅(jiān)持下去！