to know; to recognize; to be familiar with; acquainted with sth; knowledge; understanding; awareness; cognition[cedict]
很多
hěn duōㄏㄣˇ ㄉㄨㄛ
very many; very much; great (quantity)[cedict]
知道
zhī daoㄓ ㄉㄠ˙
know; be aware of[cedict]
如何
rú héㄖㄨˊ ㄏㄜˊ
how; what way; what[cedict]
制造
zhì zàoㄓˋ ㄗㄠˋ
to manufacture; to make[cedict]
反
fǎnㄈㄢˇ
contrary; in reverse; inside-out or upside-down; to reverse; to return; to oppose; opposite; against; anti-; to rebel; to use analogy; instead; abbr. for 反切 phonetic system[cedict]
效果
xiào guǒㄒㄧㄠˋ ㄍㄨㄛˇ
result; effect; quality[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]