Locknut
n. 防松螺母
🗣️ 情景例句
my grandfather is
我爷爷
I'll pick up ticket at the airport counter.
我会在机场柜台拿机票。
Instead of being five new family members, these children had immediately become a commodity.
这些孩子立即成了商品，而不是5个新的家庭成员。