重点词汇
-
打开
open; turn on; spread; snap; unfold; unlock; release; crack; put on; switch on; open up; undo; unwrap; unwind; untie; unfurl; unfasten; unpack; uncoil; violate; go into; spread out; access; load; cut in; opening
-
短波
shortwave; shortwave radio; shortwave frequency; shortwave transmission