The second chapter will focus on the background of the rising of the new African American middle class and its principal sign.

第二章重点论述了新黑人中产阶级的崛起标志和背景。

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When I reached the office, the school secretary ushered me in to see the principal without making me wait-not exactly a good sign.

我到达办公室时，校长秘书向我迎来，没有让我等，而是直接叫我去见校长——这可不是个好兆头。

youdao

Both the Principal Cardholder and Supplementary Cardholder are required to sign this application form.

信用卡主卡客户及附属卡客户须同时签署本申请表。

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In future peers will have to sign a declaration "stating the location of their principal residence, and giving confirmation that it is outside Greater London".

BBC: Peers agree to new expenses rules on main residence