树干 躯干 象鼻 汽车车尾的行李箱英释
He left his bicycle leaning against a tree trunk ..他把他的自行车斜靠在树干上。
trunk road,干道；干线道路
trunk line,干线；中继线，长途电话线
tree trunk,树干
trunk stream,干流；主流
elephant trunk,象鼻管；溜管
sympathetic trunk,交感干；交感神经干
trunk amplifier,干线放大器
