🧩 词语组成解析
chameleon
[kə'miljən]
n. 变色蜥蜴，变色龙;
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
frog
[frɔɡ]
n. 青蛙;〈侮辱〉青蛙佬，对法国人的蔑称;[交]铁路辙叉;饰扣，挂环;
🗣️ 情景例句
I'll call you again later, OK?
我以后再打给你，好吗？
No man is wise at all times.
智者千虑，必有一失。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。