crusty
词根词缀：
crust n. 硬外皮，外壳；地壳
crusta n. 甲壳
crust 外壳 + a → 甲壳
crustacean adj./n. 甲壳纲的（动物）
crust 外壳 + acean 有…的性质 → 有坚硬外壳的动物 → 甲壳纲的动物
crusty adj. 有脆皮的
crust 外壳 + y 有…的 → 有脆皮的
数据来源：新东方英语词汇速记大全
相关例句：
I'm not going to any of those crusty parties again. I always wake up inthe back of a car with a splitting headache and right next to a boomingspeaker.
我再也不去参加那些乱七八糟的聚会了。我经常醒来的时候发现自己在车后座上，头痛欲裂，而且旁边还坐一个喋喋不休的人。
If I see crusty bowls of salsa, dessicated limes, slimy herbs, or flies congregated on any raw foods I might potentially eat, I'm out of there.
如果我看到邋遢的沙拉、干干的酸橙、粘粘的香料，或是我想吃的食物原料上停着苍蝇，我马上离开那里。
He brought the crusty old battler word from Roosevelt that it was time to quit.
他从罗斯福那带去了那句执拗的陈旧的战斗口号：是认输的时候了。
He was covered with flies, all crusty with dried blood, might be why no one else had touched him, but under them he wore this studded jerkin, looked to be good leather.
他浑身爬满了苍蝇，覆盖着干涸的血迹，这也可能是没别的人去管他的原因，但在在这之下，他布满粒钉的上衣看上去皮料不错。
Mike's ok, but he's a bit of a crusty. I wish he'd wash his hair.
麦克这个人还行，就是有点邋遢。我希望他能把头发洗干净。
Does Rover have a crusty, dry, or scaly nose?
是否路虎有硬壳，干燥，或有鳞的鼻子？