passes down

as the air passes down through the canister , the gasoline vapor is trapped by the charcoal particles.

当这些空气向下流过活性炭罐时，汽油蒸气被活性炭粒子吸附。

Genes may not be the only way cancer passes down the generations.

基因可能并非是肿瘤向后代传递的唯一方式。

Every afternoon a file of old women passes down the road outside my house , each carrying a load of firewood .

每天下午，我家门前的路上都会有一队背着柴火的老妇经过。