Ests
abbr. Earth Station Technology Seminar 地面站技术研讨会; echo suppressor testing system 回波抑制器测试系统; empty sella turcica syndrome 空蝶鞍综合征
🗣️ 情景例句
But you may rest assured that the payment is guaranteed.
但是你尽可以放心，我们的付款是有保障的。
The fire is the test of gold; adversity of strong man.
烈火试真金，困苦练壮士。
How much is the pen?
这支笔多少钱？