Definition: made or done in a simple way and without much skill Level: C2
叛乱分子用捡来的零件组装了一个粗糙的爆炸装置。
The rebels assembled a ___crude explosive device from scavenged parts.
根据他粗略的草图，我们几乎无法理解提议的布局。
Based on his ___crude sketch, we could barely understand the proposed layout.
早期人类使用粗糙的石制工具进行狩猎和切割。
Early humans used ___crude stone tools for hunting and cutting.
