to just barely manage to do something
かろうじて何かをやり遂げる (karoujite nanika o yaritogeru)
"He passed the exam by the skin of his teeth."
"彼はかろうじて試験に合格した。" (kare wa karoujite shiken ni goukaku shita)
to dismiss or refuse something with a gesture or comment
the most important fact or result
to become difficult to control
to investigate or examine something
a feeling of uncertainty that spreads quickly
to improve your performance or effort