Hidam
[计] 分层索引直接存取法
🗣️ 情景例句
Make sure everybody is at that meeting.
要确定每一位都出席这次会议。
His name is John Smith.
他叫约翰、史密斯。
They played a shameful part in the whole affair.
他们在这一事件中扮演了可耻的角色。