one must constantly be on one's guard with ...; one cannot be too careful of ...
yes; yeah; hum; hmmm; oof
putting one's life on the line; staking one's life (on); risking one's life; life and death situation
day and night; around the clock; always; constantly
to perform; to do; to conduct oneself; to carry out
to hang up (e.g. a coat, a picture on the wall); to let hang; to put on (e.g. a blanket); to put on top of; to put on (glasses, etc.); to wear (a necklace, etc.); to make (a call)
to doubt; to distrust; to be suspicious of; to suspect
to be; to exist; to have; to be located; to be equipped with; to happen
good; OK; all right; fine; very well; will do
beyond this point; from now on; after this
inside; interior; among; within; middle; center; during
once; one time; temporarily; for a moment; one degree; one tone
to lose sight of; to miss
first (of all); firstly; probably; most likely; more or less (satisfactory); on the whole
to arrive at (after a struggle); to finally reach; to find one's way to; to finally hit on (e.g. an idea)
to be able (in a position) to do; to be up to the task; to be ready; to be completed; to be made; to be built; to be good at
attention; notice; care; caution; advice; warning
to go; to come; to be defeated; to collapse; to be annoyed; to be nonplussed
again; once more; also; too; on the other hand; while; and
marathon; long-distance race
moreover; furthermore; nevertheless; and yet
this time; now; next time; another time; recently; lately
at one's feet; underfoot; gait; pace; most recent; current
to be muddy; to be slushy
part; portion; amount; worth (as in "two days' worth"); one's means; one's place; one's duty
to snatch away; to dispossess; to steal
long (distance, length); long (time); protracted; prolonged
tunnel; to tunnel (through a potential barrier); letting a grounder go through one's legs
to come out; to fall out; to fade; to discolour; to wear a hole (e.g. clothes); to leave (e.g. a meeting); to be clear
counter for people (usu. seating, reservations and such); first name; famous; great; name; noun
remnant; residue; remaining; left-over
test; trial; probation; ordeal; tribulation
severe; harsh; hard; cruel; rigorous
to continue; to last; to continue (without a break); to be unbroken; to occur again and again; to lead to; to connect to