uncharted / troubled / murky waters

uncharted / troubled / murky waters formala situation that is difficult, dangerous, or unfamiliar未知的境况/困难情况/心中无数的困境:•the uncharted waters of the 21st century21 世纪的未知数

• bascinet
• African sleeping sickness, African trypanosomiasis
• bibliolatry
• flying eavesdropper
• do-goodings
• turn of expressions
• on the trot
• bloodcurdling
• upper memory
• musquashing
• espousals
• diphtherias
• Johannine
• trine to the nubbing cheat
• electronic extended family
• nosegays
• mainspring
• OTC
• Dibelius, Martin
• Edina
• taifs
• unsparingness
• phlebothrombosis
• maldeploy
• off the charts
• entia
• genetic counselor
• derivest
• me neither
• make a bull's eye
• narcotics
• assigneeship
• swear the peace against
• degausser
• oilnuts
• anchor charge
• horned lizards
• hepato-
• ferric dichromate
• floristry
• evidence / statements etc to the contrary something
• tyrosine aminotransferase
• efficiency rating
• Arawak
• petroleum geologist
• indexable
• jump to it
• water caltrop
• enslaved to
• epitapher
• stratigraphies
• never come to anything
• peacock blue
• the roaring forties
• bicolors
• have high regard for
• Mesenteric Arteries
• go through one's pace
• baseliner
• contrabassoonists
• volunteerisms
• sky noise
• assumptions
• standard electrode potentials
• return game
• astronomer
• lipins
• fleaing
• serums
• an exclusive
• diathermy
• love scenes
• berchtesgadens
• paddling
• diamidine
• psychometer
• take form and shape
• shilling
• finishing touches
• lattice
• dogies
• psychotherapies
• Fisher's exact test
• pikestaffs
• point of control
• pride of the desert
• a bit of stuff / fluff / skirt
• campesino
• disembodied brain
• take someone on tow
• Half-Lifes
• medlines
• liposculpt
• engine necelle
• subsensible
• tempering air
• disk drive
• somesthesis
• reupholstery
• thermojunctions