The body consists of several layers of wood.

琴身由好多层木圈制成。

Well, not exactly, but trees grow rings – a layer of wood for each year of growth.

好吧，不完全会，但是树木会长年轮——树木的年轮一年长一圈。

Plywood is a wooden board made from layers of wood that are glued together – they're stuck together.

胶合板是由胶合在一起的多层木材制成的木板 - 它们粘在一起。

Every year the stem of the oak-tree becomes a little thicker, for a new layer of wood grows all round it just under the bark.

每年, 橡树的茎干都会变得更粗, 因为树皮之下长出了新的一层木头。

The first fifteen inches from the bark of a medium-size tree six feet in diameter, on the north Tenaya pavement, had 859 layers of wood.

在北 Tenaya 人行道上， 距离一棵直径六英尺的中型树的树皮前十五英寸有 859 层木头。