Verticalness
n. 垂直
🗣️ 情景例句
Fine. The bill comes to $ 300 even.
好。账单上总共是300元整。
An empty hand is no lure for a hawk.
空手诱不来老鹰。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。