其房子很大、间距适当，周围全是花园。Its houses are large, well-spaced and surrounded by gardens.足够大的间距能使树木和庄稼长得更茁壮。Generous spacing gives healthier trees and better crops.我钻了5个等间距的孔。I drilled five holes at equal distance....
Light fittings with metal parts should always be earthed.有金属部件的照明装置都应该走地线。He carefully earthed up the roots of the newly - planted tree.他仔细地在新栽的树的根部培上土.It is desirable that compensating cables be run in earthed conduit.补...