史先生点了一支烟，瞥了我一眼后开始说话，犹豫一下后又开始了。

Mr. Shi squinted at me as he lit a cigarette and then started to speak, hesitated and started again.

youdao

人眼能感知的光亮是以流明-小时为单位计量的，每流明相当于一支燃烧一小时的蜡烛产生的能量。

The light perceived by the human eye is measured in units called lumen-hours.This is about the amount produced by burning a candle for an hour.

youdao

老石点了一支烟，瞥了我一眼后开始说话，然后又犹豫了一下，又开始说了起来。

Mr. Shi squinted at me as he lit a cigarette and then started to speak hesitated and started again.

youdao