Hidrogen
n. 氫
??? 情景例句
They are constantly quarreling.
他們時常吵架。
Nerd.
書呆子。
that misfortune might overtake us if the important events of our lives were not related to it.
要是我們不把生活中的重大的事件告訴那條河，就可能大禍臨頭。