Catayst selectivity
[機] 催化劑選擇性
?? 詞語組成解析
[機] 催化劑
n. 選擇性, 選擇度\\n[化] 選擇性
??? 情景例句
Do you really mean it?
說的可是當真？
Better ask twice than lose you way once.
寧愿問路兩次勝過迷路一次。
Since its discovery, it has become a sort of potholers' Everest.
自從被發現以后，這個洞成了洞穴探險者的珠穆朗瑪峰，