Levo-rotatory substance

levo

a. 左旋的

rotatory

a. 旋转的, 引起旋转的, 轮流的\\n[医] 旋转的, 转动的

substance ['sʌbstəns]

n. 物质，材料;实质，内容;[神]灵;（织品的）质地;

sub下面+st站立+ance表名词→站在下面的东西→物质；本质

Relax, Harry.

不要紧张 ，Harry。

There's still hope.

还是有希望的。

I'm afraid I can't agree with you. That's a good way of giving information, but it's not a good way of persuading people. For one thing, it's boring, and people aren't going to read an ad that looks boring. For another thing, one computer looks very like

恐怕我不能同意你的意见。那是个通报信息的好办法，但并非是使人信服的好办法。一是它很乏味，人们是不会去读一则看起来很乏味的广告的。其次，计算机彼此都很相像。人们不会记住产品的名字的。