单语范例（未经PONS编辑处理）
They bore in the cambium under the bark of the host plant, producing pitch masses on the trunk.
en.wikipedia.org An unusual feature inside the church consists of two huge tree trunks which originally supported the bells in the free-standing bell tower.
en.wikipedia.org Its construction in 1925 marked the beginning of the era of long distance trunk lines in telephone communication.
en.wikipedia.org The erect trunk may be 1.3 m tall and approximately 5 cm in diameter.
en.wikipedia.org The trunk of this plant is erect, 1-2 m tall, and only 1-2 cm in diameter.
en.wikipedia.org