Grain-boundary
晶界
🧩 词语组成解析
grain
[ɡren]
n. 谷物，粮食;（沙，金，盐等的）颗粒;谷粒，籽粒;（木材，大理石等的）纹理;
vt. 把…作成细粒;把…漆[画]成木纹;染透;刮去（皮上的）毛;
vi. 成谷粒;
🗣️ 情景例句
Hi. I'd like to cash an American Express traveler's check.
嗨，我想兑换美国运通的旅行支票。
Who is that over there?
那边那个人是谁？
because this is easier to shape than other kinds.
因为燧石较之其他石头更容易成形。