Vocabulary consisting only from characters you are able to read
水温
すいおん
water temperaturemix
通す
とおす
to let pass, to overlook, to continue, to keep, to make way for, to persist ingodan, jlpt3, verb, vtrans
耳にする
みみにする
to hear, to hear by chance, to hear by accident, to catch (the sound)suru
国字
こくじ
(1)country's official writing system, native script, (2)kana, (3)kanji that originated in Japan (as opposed to China) bunpou