not very intelligent
あまり賢くない (amari kashikokunai)
"He’s kind but not the sharpest tool in the shed."
"彼は優しいけれども、シェッドの中で一番鋭い工具ではない。" (Kare wa yasashī keredomo, **shed no naka de ichiban surudoi kōgu de wa nai**.)
to react angrily and criticize someone suddenly
the success and failure of someone or something over time
to trust that someone is telling the truth
the strength of a group depends on the weakest member
to start a friendly conversation in an awkward situation
To focus on the positive aspects of a situation.