41、9.This mechanism also that both sides are ready to transmit data and know that the other side is ready to transmit as well.

277、pass ()

276、follow the () exactly

275、declared ()

274、英语中许多及物动词常常要求用()作宾语;

273、turn () do be

272、keep ()

271、urge () to do sth

270、I was glad to () from such a terrible dream

269、But the engine () out suddenly

268、In the garage, her car warmed up easily, thanks () its electronic ignition