🧩 词语组成解析
a. 种系发生的, 系统发育的\\n[医] 种系发生的, 种族发育的
🗣️ 情景例句
There's nothing you can do about it.
你对此无能为力。
Would you please tell us the price of these electric heaters so as to help us make the decision.
能否告知这些电热器的价格，以便我们作出决定。
He sent the journalist two more faxes, but received no reply.
他给记者先后发去两份传真，但对方毫无反应。