樹脂的英文：
resin; gum; pitch

resin是什么意思：
n. 树脂
v. 涂树脂于；用树脂处理

They are made of a common plastic resin.
它们是用一种普通的塑胶合成树脂做成的。

This shelf was made of synthetic resin.
这个架子是合成树脂做的。

The purpose of the extrusion coating compound, the selection of resin.
挤出涂布复合的目的不同，选用的树脂也不同。

gum是什么意思：
n. 牙龈，齿龈；树胶，树脂；口香糖
v. 用胶粘，涂以树胶；使…有粘性

He likes chewing gum.
他喜欢嚼口香糖。

One girl was chewing gum.
一个女孩在嚼口香糖。

xanthan gum, fermentation, purification
黄原胶,发酵,提纯

pitch是什么意思：
v. 投掷；为…定音高；搭帐篷；用沥青涂
n. 投；投球；音高；程度；沥青

deliver a pitch
竭力推销

the pitch was away (or wide); an outside pitch.
那个球投歪了；一个偏外的坏球。

We should pitch it within and without with pitch.
我们应该内外都涂上沥青。