【nomi】評論
Stacy keeps healthy by swimming every day.史黛西每天透過游泳保持健康。by介系詞（用於表示方式）靠，用，透過They crossed the river by ferry. 他們乘渡船過了河。He learned English by listening to the radio. 他透過聽收音機來學習英語。She cheated in the test by copying from the boy in front. 她在考試中抄襲前面的男孩作弊。