Edits
abbr. 实验数字电视系统（Experimental Digital Television System）
🗣️ 情景例句
Aren't you going to the aerobics class this morning?
今天上午你不是去上有氧运动课吗？
Close your book,please.
请把书合上。
Settlers made agreements with Native American cheifs but always broke them afterwards.
殖民者同美洲土著人的首领达成了协议，但是这些协议随后总是被撕毁。